<br />
<b>Fatal error</b>:  Uncaught Error: Class &quot;FormatJson&quot; not found in /home/data/www/shonky.systems/mediawiki/includes/exception/MWExceptionHandler.php:657
Stack trace:
#0 /home/data/www/shonky.systems/mediawiki/includes/exception/MWExceptionHandler.php(195): MWExceptionHandler::logError()
#1 /home/data/www/shonky.systems/mediawiki/includes/AutoLoader.php(81): MWExceptionHandler::handleError()
#2 /home/data/www/shonky.systems/mediawiki/includes/AutoLoader.php(81): require('...')
#3 /home/data/www/shonky.systems/mediawiki/includes/exception/MWExceptionHandler.php(621): AutoLoader::autoload()
#4 /home/data/www/shonky.systems/mediawiki/includes/exception/MWExceptionHandler.php(111): MWExceptionHandler::logException()
#5 /home/data/www/shonky.systems/mediawiki/includes/exception/MWExceptionHandler.php(129): MWExceptionHandler::rollbackMasterChangesAndLog()
#6 [internal function]: MWExceptionHandler::handleException()
#7 {main}
  thrown in <b>/home/data/www/shonky.systems/mediawiki/includes/exception/MWExceptionHandler.php</b> on line <b>657</b><br />