MediaWiki internal error.

Original exception: [c9843cbde350cf1c6237e552] 2024-03-29 09:35:05: 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.