Internal server errors (error 500) are often caused by conflicts between plugins or theme functions. If you can access your admin panel, try deactivating all plugins. If not, follow this guide to manually reset your plugins without Dashboard access. If deactivating plugins resolves the issue, reactivate them one by one to identify the cause.
If the issue persists, switch to the default theme for your WordPress version to rule out a theme-specific problem. Without admin panel access, use SFTP or FTP or your hosting control panel’s file manager. Navigate to /wp-content/themes/ and rename the directory of your active theme. This will activate the default theme and help identify if the theme is causing the issue.
If neither step resolves the error, a .htaccess rule might be the culprit. To check, access your server via SFTP, FTP, or your hosting control panel. Rename the .htaccess file. If you don’t see it, ensure your file viewer is set to display hidden files.
The reason for the error should also be visible in the error log. You can find it in your hosting area. If necessary, the support of your hosting can help you.
Alternatively, you could also enable debugging in WordPress. How to do this is described here:?https://www.ads-software.com/support/article/debugging-in-wordpress/?
