WordPress makes it possible to build and manage a website without advanced coding skills, but errors can still interrupt your work. You might see a blank screen, a database connection error, a 404 page, a failed update, or a message saying your website has experienced a critical error.

The safest way to troubleshoot is to identify the exact problem, check what changed recently, and test one possible solution at a time. This guide explains how to diagnose common WordPress errors, which steps you can try yourself, and when to ask your hosting provider or developer for help.

Migration note: Free migration eligibility, supported services, and migration scope depend on the hosting service and plan. If you are considering moving your website to resolve persistent hosting-related problems, confirm migration eligibility and scope with the provider before purchasing.

At a Glance: Who This Guide Helps

This guide is for WordPress beginners, bloggers, small businesses, and website administrators who need practical help diagnosing common website problems.

It covers questions such as:

  • Why is my WordPress website showing a blank screen?
  • How do I fix a database connection error?
  • Why do WordPress posts return 404 errors?
  • How can I identify a plugin or theme conflict?
  • What should I do after a failed update?
  • Why are image uploads failing?
  • When should I contact my hosting provider?

Before You Troubleshoot: Start Here

1. Record the exact error

Write down the full error message, the affected URL, when the problem started, and what you were doing immediately beforehand. A problem that begins just after a plugin update may have a different cause from one that affects the entire site without any recent changes.

2. Check the scope of the problem

Open the homepage, a few internal pages, and /wp-admin/. Determine whether the issue affects one page, the dashboard, the whole website, or one feature such as image uploads or a contact form.

3. Review recent changes

Think about any recent plugin, theme, WordPress core, PHP, domain, HTTPS, DNS, or hosting changes. If the website was recently moved, check the migration and database configuration before changing unrelated settings.

4. Protect the website before significant changes

If the site is accessible, create a current backup before changing files, database settings, or plugin installations. A recoverable backup generally needs both the website files and database. If the site is already broken, check whether a suitable recent backup exists.

For a business-critical site, use a staging environment when available so you can test changes without disrupting visitors. Avoid restoring a backup until you understand what content or orders may be lost since that backup was created.

5. Change one thing at a time

Make a single change, test the affected page, and record the result. Avoid changing multiple settings at once because that makes it harder to identify the cause. If your website processes payments or stores customer information, get professional help rather than experimenting on the live site.

1. How to Fix the WordPress White Screen of Death

The “white screen of death” is a blank page where website content should appear. The WordPress dashboard may also be unavailable. Possible causes include PHP errors, plugin or theme conflicts, and exhausted server resources.

Step 1: Check whether the dashboard works

Try opening https://yourdomain.com/wp-admin/, replacing yourdomain.com with your actual domain.

If the dashboard works but the public site is blank, the issue may involve the active theme, a plugin, or a particular page.

Step 2: Investigate a recently changed plugin

If you can access the dashboard, go to Plugins → Installed Plugins and deactivate the plugin you most recently installed or updated. Reload the affected page.

If the dashboard is unavailable, use your hosting file manager or SFTP if your plan provides it. The usual plugin directory is wp-content/plugins/. If you have a strong reason to suspect one plugin, renaming only that plugin’s folder can prevent WordPress from loading it temporarily. This may also disable features that depend on it.

Avoid renaming the entire plugins directory on a live business website unless you understand the impact or have help available.

Step 3: Check the active theme

If the plugin test does not help, a theme conflict may be responsible. If you can access the dashboard, temporarily switch to a compatible default WordPress theme that is already installed.

If you cannot access the dashboard, changing the theme through files or the database is more advanced. Ask your developer or hosting provider for help if you are unsure.

Step 4: Review PHP error logs

Check the error log in your hosting control panel, if available. Look for entries matching the time the blank screen appeared, especially errors naming a plugin, theme, file, or line number. Use those clues to investigate the relevant component instead of deleting files at random.

Step 5: Check resource limits

If the log reports memory exhaustion or another resource limit, ask your host to check the PHP memory limit and available server resources. Raising a limit may help a legitimate workload, but it will not fix faulty code or a plugin that uses excessive resources.

For additional guidance, see the official WordPress debugging documentation.

2. How to Fix “Error Establishing a Database Connection”

WordPress needs a working database connection to load posts, pages, settings, and other site information. This message means WordPress cannot establish that connection.

Possible causes include incorrect credentials, an unavailable database server, insufficient database permissions, or configuration problems after a migration.

Step 1: Check whether the whole site is affected

Open the homepage and /wp-admin/. If both show the same database error, focus on the database connection rather than individual posts or plugins.

Step 2: Check the hosting service

Look for hosting service notices, database availability issues, resource limits, or other relevant messages in your control panel. If the database service appears unavailable, contact your provider instead of repeatedly editing WordPress files.

Step 3: Verify the database settings

The wp-config.php file contains database connection settings. The relevant entries may look like this:

define( 'DB_NAME', 'database_name' );
define( 'DB_USER', 'database_user' );
define( 'DB_PASSWORD', 'database_password' );
define( 'DB_HOST', 'localhost' );

These are examples only. Your actual values may differ, including the database host. If you recently migrated the site or changed database credentials, compare the values in wp-config.php with the details in your hosting account. Do not share the real database password in public forums or unsecured messages.

Step 4: Check database user permissions

If the settings match, the database user may lack the required privileges or the database server may be rejecting connections. Use your host’s documented database tools or ask support to verify the database, user, permissions, and server availability.

Step 5: Investigate corruption only if there is evidence

Database corruption is possible, but it should not be assumed without evidence. Review logs and your host’s guidance before attempting a repair. Protect the database with a backup where possible. Avoid running repair commands or changing configuration repeatedly without identifying the cause.

3. How to Fix WordPress 404 Not Found Errors

A 404 error means the requested URL does not lead to an available page. It may affect one post or many WordPress URLs. Common causes include incorrect permalink rules, deleted content, changed slugs, missing files, or server configuration problems.

Refresh WordPress permalink rules

If the homepage works but individual posts return 404 errors:

  1. Sign in to the WordPress dashboard.
  2. Open Settings → Permalinks.
  3. Review the current permalink structure.
  4. Click Save Changes without making unnecessary changes.
  5. Test the affected URLs in a private browser window.

WordPress will attempt to refresh its rewrite rules. On many Apache-based setups, this may update the relevant .htaccess rules if WordPress has permission to do so. Other server configurations may require different rewrite rules, so contact your host if the issue persists.

Check the individual URL

If only one page returns a 404:

  • Check the spelling of the URL.
  • Confirm that the page or post still exists and is published.
  • Check whether its slug has changed.
  • Review internal links pointing to the page.
  • If the content moved permanently, add a relevant 301 redirect to its replacement.

Avoid redirecting every missing URL to the homepage. A redirect should help visitors reach a relevant destination, not conceal unrelated missing pages.

4. How to Fix a 500 Internal Server Error

A 500 Internal Server Error is a general server-side failure. It does not identify one specific cause. Possible causes include PHP errors, plugin or theme conflicts, incorrect server configuration, or hosting resource limits.

Step 1: Check the server error log

Open the error log in your hosting control panel, if available, and look for entries that match the time the error occurred.

Step 2: Review recent plugin or theme changes

If the error began immediately after an update or installation, investigate that component first. Disable a suspected component only in a controlled way, preferably on staging or after taking a backup.

Step 3: Check .htaccess if your server uses it

An invalid .htaccess rule can cause a 500 error on Apache-based hosting. Download a copy of the existing file before testing any change.

If you understand the consequences, you can temporarily rename the file to test whether it is responsible. If the error disappears, restore a valid configuration for your server or regenerate the WordPress permalink rules as appropriate. If renaming the file does not help, restore the original file. Do not apply Apache-specific instructions to servers that use another configuration system.

Step 4: Check PHP compatibility and resources

Review logs for unsupported functions, memory exhaustion, or other PHP errors. If the cause is unclear, ask your hosting provider to investigate. Avoid changing several server settings at once; the log is usually a better starting point than guessing.

5. How to Fix “There Has Been a Critical Error on This Website”

WordPress may show this message when a serious PHP error prevents part of the site from working. An incompatible plugin, a theme issue, or code that does not work with the installed PHP or WordPress version may be responsible.

Use WordPress recovery mode if available

For certain fatal PHP errors, WordPress may send the site administrator an email with a recovery-mode link. This option is not available for every error, and email delivery may fail.

If you receive the email:

  1. Check that it relates to your website and the error you are investigating.
  2. Follow the recovery link and sign in as instructed.
  3. Review the plugin or theme identified in the notice.
  4. Disable or update the affected component as appropriate.
  5. Test the website after leaving recovery mode.

Check your spam folder if you expected an email but did not receive it.

If recovery mode is unavailable

  • Review recent plugin, theme, and WordPress changes.
  • Inspect PHP error logs.
  • Check compatibility with your installed PHP and WordPress versions.
  • Test the suspected component on staging where possible.
  • Ask your hosting provider or developer for help if the error continues.

Do not delete a plugin or theme just because it appears in a message. First understand its role and preserve a suitable backup where possible.

6. How to Fix WordPress Memory Exhausted Errors

A memory exhaustion error means a PHP process has reached its configured memory limit. It can happen during a large import, backup, plugin operation, or other process that needs more memory than is available.

Step 1: Identify the failing process

Check the PHP error log for the memory-related message. Note the page, plugin, or task running when the error occurred.

Step 2: Review the PHP memory limit

Your hosting control panel may show the current PHP memory limit. If the site needs more memory, ask your hosting provider whether the limit can be adjusted within the plan’s available resources.

Step 3: Investigate unnecessary resource use

A plugin may be poorly configured, incompatible, or handling an unusually large task. Review recent changes and test suspected components on staging where possible.

Step 4: Avoid treating more memory as a universal fix

Increasing the limit may help a legitimate task complete, but it will not correct a programming error or inefficient process that consumes excessive resources. If memory errors recur, investigate the underlying cause rather than repeatedly increasing the limit.

7. How to Find WordPress Plugin or Theme Conflicts

Plugin and theme conflicts can cause blank pages, broken layouts, missing features, JavaScript errors, or critical errors. They often begin after an update or a new installation.

Troubleshoot the conflict systematically

  1. Record the changes made immediately before the problem started.
  2. Create a backup or use a staging environment.
  3. Temporarily deactivate the most likely plugin.
  4. Test the affected page or feature.
  5. If the issue remains, investigate other recently changed components.
  6. If plugins do not appear responsible, test with a compatible default theme.
  7. Once the cause is confirmed, update, replace, or report the component.

If you have many plugins, a controlled process is safer than deactivating everything on a live site. Essential plugins may power payments, forms, memberships, or other business functions.

If you cannot access the dashboard, use hosting tools only if you understand their effects, or ask a developer for help. For advice on reducing security risks from outdated or vulnerable components, read How to Secure a WordPress Website: 12 Essential Steps.

8. How to Fix WordPress Image Upload Errors

Uploads can fail because of file-size limits, unsupported formats, incorrect directory permissions, insufficient storage, or server-side processing problems.

Check the file and upload limits

  1. Try a smaller image to see whether the file size is the issue.
  2. Confirm that the format is supported by WordPress and your server.
  3. Check the upload-size limits shown by your hosting environment.
  4. Check available storage space.
  5. Determine whether one file or all uploads fail.

If the image is too large, resize and compress it before uploading. This can also improve page-loading performance.

Check the uploads directory

WordPress normally stores media in wp-content/uploads. If uploads fail despite being within the file-size limit, the directory may have incorrect permissions or ownership, or the server may be unable to write files.

Ask your hosting provider to verify the directory configuration. Do not set permissions to 777 as a workaround; this can create unnecessary security risks.

If thumbnails are missing

If the original image uploads but thumbnails do not appear, check media settings, available PHP image-processing support, server logs, and plugin conflicts. A thumbnail-generation problem is different from a failed upload, so identify which part of the process is failing before changing settings.

9. How to Fix WordPress Login Problems

Login issues can result from an incorrect password, browser cookies, a security plugin, two-factor authentication problems, or incorrect site URL settings.

Try these steps

  1. Confirm that you are using the correct login URL.
  2. Use WordPress’s password reset option.
  3. Try a private browser window to check for some cookie or browser issues.
  4. Clear the website’s browser cookies if necessary.
  5. Check whether a security plugin or hosting rule is blocking the login.
  6. If the domain or HTTPS settings recently changed, verify that the WordPress Address and Site Address are correct.

If you suspect unauthorized access, secure the administrator email and hosting accounts as well as WordPress. From a trusted device, reset affected credentials and review unfamiliar user accounts or unexpected role changes. Contact your provider promptly if the hosting account may be compromised.

Do not repeatedly attempt logins if the system applies temporary restrictions. If legitimate access remains blocked, contact your hosting provider or site administrator.

10. How to Fix WordPress Update Failures

Updates may fail because of network interruptions, insufficient storage, file-permission problems, incompatible plugins, or server-side errors. A failed update may also leave the website temporarily stuck in maintenance mode.

Fix a website stuck in maintenance mode

During some updates, WordPress creates a .maintenance file in the WordPress installation directory.

  1. Check whether an update is still running.
  2. Wait if the update process is active.
  3. If the process has clearly stopped and the site remains in maintenance mode, open the WordPress installation directory through your hosting file manager or SFTP.
  4. Locate the .maintenance file.
  5. Remove it only after confirming that no update is still running.
  6. Reload the website and verify that WordPress works normally.

Removing the file during an active update can interfere with the process.

Troubleshoot other update failures

  • Check available disk space.
  • Review PHP and server error logs.
  • Verify that WordPress can write to the required directories.
  • Check compatibility with the active theme and plugins.
  • Test the update on staging before repeating it on a business-critical website.

Do not repeatedly reinstall WordPress or overwrite files without understanding the cause. If you need help setting up a new installation, see How to Install WordPress on cPanel: A Step-by-Step Guide.

11. How to Fix WordPress Redirect Loops

A redirect loop occurs when the browser is repeatedly sent between URLs and cannot reach the intended page. The browser may display a “too many redirects” message.

Possible causes include conflicting HTTP and HTTPS rules, incorrect WordPress URLs, reverse-proxy settings, or overlapping redirect rules.

Step 1: Check the website URLs

If the dashboard is accessible, open Settings → General. Verify that the WordPress Address and Site Address match the intended domain and protocol. If the site should use HTTPS, make sure HTTPS is configured correctly before changing these values.

Step 2: Review redirect rules

Check redirect settings in your hosting control panel, server configuration, .htaccess file where applicable, or CDN settings. For example, one rule might redirect HTTP to HTTPS while another redirects HTTPS back to HTTP.

Step 3: Check CDN or reverse-proxy settings

If the website uses a CDN or reverse proxy, the origin server and proxy must agree on how HTTPS is handled. Incorrect settings can create repeated redirects. Ask your hosting provider to review the setup if you are unsure.

Step 4: Test the result

After correcting the configuration, clear relevant caches and test in a private browser window. Avoid adding another redirect plugin until you know where the existing redirects are configured.

For background on HTTPS, see What Is an SSL Certificate? A Complete Guide to HTTPS for Websites.

12. How to Troubleshoot Slow WordPress Pages

A slow website is not always displaying an error message, but poor performance can make it feel broken or prevent visitors from completing important tasks.

Common causes include oversized images, ineffective caching, unnecessary scripts, slow database queries, and limited hosting resources.

Step 1: Test important pages

Use Google PageSpeed Insights to test key pages, such as the homepage, a service page, and an important landing page. Run more than one test and compare the results rather than relying on a single score.

Step 2: Investigate likely causes

Review the diagnostics for:

  • Large images that take too long to load.
  • Render-blocking or excessive CSS and JavaScript.
  • Slow server response times.
  • Missing or ineffective caching.
  • Plugins that create unnecessary work.
  • Hosting resource limits.

Step 3: Make one change and retest

Optimize large images, review caching, and investigate unnecessary scripts or plugins one at a time. Compare the results and confirm that the website’s important functions still work. A higher test score is useful when it reflects a better experience for visitors, not just a changed number.

For a detailed walkthrough, read How to Speed Up a WordPress Website: A Practical Guide.

13. When Should You Contact Your Hosting Provider?

Some WordPress issues can be resolved through the dashboard, but others require access to server logs, database services, PHP settings, or hosting-level configuration.

Contact your hosting provider when:

  • The database server appears unavailable.
  • The website repeatedly returns 500 errors.
  • PHP processes reach resource limits.
  • File permissions or ownership appear incorrect.
  • You cannot access hosting control panel or database tools.
  • The site has persistent timeouts or server errors.
  • You suspect a security incident affecting the hosting account.
  • The problem continues after the likely WordPress-level cause has been addressed.

When contacting support, share the exact error message, affected URL, approximate time the issue began, recent changes, and relevant error-log entries. Never share passwords, database credentials, private keys, or other secrets in a public support request.

If the issue persists because of hosting-related limitations, you may also want to consider whether your current plan meets the website’s needs. If you are thinking of moving the site, read Free Website Migration: A Complete Guide to Moving Your Website to a New Host. Despite the article title, confirm the provider’s current migration eligibility and scope before assuming your site qualifies.

WordPress Troubleshooting Checklist

Before finishing a troubleshooting session, confirm that you have:

  • Recorded the exact error message and affected URL.
  • Checked whether the problem affects one page or the entire website.
  • Reviewed recent plugin, theme, WordPress, domain, or hosting changes.
  • Checked for a suitable backup before significant changes.
  • Reviewed error logs where available.
  • Tested one suspected cause at a time.
  • Avoided changing unrelated settings or deleting files at random.
  • Tested the homepage, dashboard, forms, and other important functions after the fix.
  • Contacted hosting support if the issue involves server resources or infrastructure.
  • Reviewed account access and security if unauthorized changes are suspected.

Frequently Asked Questions

1. Why is my WordPress website not working?

A WordPress website may stop working because of a plugin conflict, theme error, failed update, database connection issue, server configuration problem, or hosting resource limit. Start by identifying the exact error and reviewing recent changes.

2. How can I fix a WordPress error without losing my content?

Avoid deleting files or database tables unnecessarily. Identify the likely cause first, and create a backup before significant changes when possible. Many issues can be resolved by correcting a configuration or disabling a faulty component without deleting posts or pages.

3. What should I do if I cannot access the WordPress dashboard?

Confirm the login URL and try the password reset process. If the dashboard remains inaccessible, investigate recent plugin or theme changes using your hosting tools if you know how to use them, or contact your hosting provider or developer. Avoid broad changes if you are unsure of their effects.

4. Can a plugin bring down an entire WordPress website?

Yes. A faulty, incompatible, or resource-intensive plugin can cause PHP errors, blank pages, or other failures. If the issue began after a plugin change, investigate that component first and test any changes carefully.

5. Is it safe to edit wp-config.php?

It can be safe if you understand the settings being changed, but an incorrect edit can stop WordPress from working. Keep a copy before editing, protect database credentials, and ask your hosting provider or developer for help if you are uncertain.

6. Should I reinstall WordPress to fix an error?

Reinstallation is not the first step for most WordPress errors. Many issues involve a plugin, theme, configuration, database connection, or server setting. Identify the underlying cause before replacing WordPress files.

7. When should I restore a backup?

Consider restoration when the website is seriously broken, a recent change cannot be reversed safely, or a verified clean backup offers a reliable recovery path. First check the backup date and contents: restoring may remove newer posts, orders, form submissions, or other database changes.

8. Can my hosting provider fix WordPress errors?

A hosting provider may be able to investigate database availability, PHP errors, server resource limits, file permissions, and other hosting-related problems. Custom code, unsupported plugins, and website-specific configuration may require a WordPress developer.

Conclusion

Fixing common WordPress errors starts with identifying the actual problem rather than changing settings at random. Review error messages, check recent changes, inspect logs when available, and test one solution at a time. Use suitable backups before significant changes, and contact your hosting provider when the issue involves server configuration or resources.

Need hosting for your WordPress website? Explore FoxNett Web Hosting to review the available options. If you plan to move an existing website, confirm migration eligibility, supported services, and the scope of migration with FoxNett before purchasing.