MediaWiki internal error.

Original exception: [966937b90ce516a87fc521d3] 2024-03-28 15:39:17: 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.