MediaWiki internal error.

Original exception: [a81a9a47945132ef2125b695] 2024-03-29 09:10:33: Fatal exception of type "Wikimedia\Rdbms\DBQueryError"

Exception caught inside exception handler.

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