MediaWiki internal error.

Original exception: [c81d270ec66802f7f81f99f4] 2024-03-29 14:38:42: 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.