MediaWiki internal error.

Original exception: [8f40fec263220895c05c3ff0] 2024-03-28 11:46:35: 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.