MediaWiki internal error.

Original exception: [c212cfcae6cd34f62363d1ce] 2024-03-29 14:37:45: 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.