A 403 error means access to a file or folder is restricted. Check your file permissions and .htaccess rules.
A 404 error means the page doesn’t exist or the file is missing. Check your file names and folder paths.
A 500 error usually indicates a script or configuration problem. Rename your .htaccess file temporarily or check for PHP errors in cPanel under Error Logs.
If you can’t find the cause, open a support ticket with the exact error and time so we can investigate further.