MediaWiki internal error.

Original exception: [Zfl3GGgVWid6Wy@ognjb@wAAByE] 2024-03-19 11:29:28: 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.