500 internal Server Error

500 Internal Server Error

You get the error message 500 internal Server Error on your website with PHP. We’ll show you how to get to the bottom of the mistake.

1. Log in to the Hosting Administration
2. Open PHP settings
3. Change the value ‘Display Errors’ to ‘ON’.
4. Wait 2 minutes and reload the page
5. The PHP code which causes the error will be displayed.
6. For safety reasons, please remember to reset Display Errors to ‘OFF’.

Common cause: wrong PHP version

A very common cause of the 500 Internal Server Error is a PHP version that does not match your CMS (e.g. WordPress, Drupal, Joomla) or individual plugins. This typically happens after an automatic PHP update on the server or after a CMS update.

1. Open the PHP settings for the domain in the Hosting Administration.
2. Check which PHP version is currently set.
3. Try switching to a different PHP version: for older systems usually an older version (e.g. PHP 7.4 instead of 8.x), for newer systems possibly a newer version.
4. Reload the website afterwards and check whether the error is gone.

If you can’t find the right PHP version yourself, please contact our support – we’re happy to help.