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Fixing "There has been a critical error on this website" in WordPress

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WordPress shows “There has been a critical error on this website” when a PHP error stops a page from loading. It’s almost always caused by a plugin, a theme, or a change of PHP version.

1. Check your email

Section titled “1. Check your email”

WordPress usually emails the site’s admin address with the subject “Your Site is Experiencing a Technical Issue”. The email names the plugin or theme that caused the error, and includes a recovery mode link.

  1. Click the recovery mode link and log in.
  2. WordPress shows which plugin or theme failed. Deactivate it, or update it if an update is available.
  3. Click Exit Recovery Mode.

No email? Check your spam folder, then carry on below.

2. Find the error in the log

Section titled “2. Find the error in the log”

Open the error_log file in your website’s folder in cPanel’s File Manager, or turn on WordPress debug logging. See Finding PHP error logs.

Look for the last PHP Fatal error line. The file path tells you the cause:

3. Turn off the plugin or theme without logging in

Section titled “3. Turn off the plugin or theme without logging in”

In File Manager:

  • One plugin: go to wp-content/plugins/ and rename the plugin’s folder, for example elementor to elementor-off.
  • All plugins: rename wp-content/plugins to plugins-off. If the site comes back, rename it to plugins again, log in, and reactivate plugins one at a time to find the faulty one.
  • Theme: rename your theme’s folder in wp-content/themes/. WordPress switches to a default theme such as Twenty Twenty-Five, if one is installed.

You can also turn plugins and themes on and off in cPanel’s WordPress Management (WP Toolkit).

4. Did you change PHP version?

Section titled “4. Did you change PHP version?”

If the error started after changing PHP version, switch back in cPanel under Select PHP Version, then update WordPress, your plugins and your theme before trying again.

5. Restore yesterday’s backup

Section titled “5. Restore yesterday’s backup”

If nothing works, restore your website’s files and database from before the error. See Restoring files, email and databases using JetBackup.

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