MediaWiki internal error.

Original exception: [ZgViJZfpJX-Y-87B84ub0AAAACI] 2024-03-28 12:27:17: Fatal exception of type "Wikimedia\Rdbms\DBConnectionError"

Exception caught inside exception handler.

Set $wgShowExceptionDetails = true; at the bottom of LocalSettings.php to show detailed debugging information.