Our wiki Christipedia has the following error on the homepage, not on articles. The message on the homepage encompasses the whole screen:
MediaWiki internal error.
Original exception: [e048d054ab5d083d5d8bcc37] 2017-08-14 06:10:12: 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
As a result the site appears to be down.