MediaWiki internal error.

Original exception: [ZgbAO@vybQjNubT0ukWK2QAAALQ] 2024-03-29 13:20:59: 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.