MediaWiki internal error.

Original exception: [9c20a217437ea74ad56a80ea] 2024-03-29 10:07:02: 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.