Fatal error: Uncaught Error: Class 'FormatJson' not found in /homepages/21/d204069791/htdocs/wiki/w/includes/exception/MWExceptionHandler.php:624 Stack trace: #0 /homepages/21/d204069791/htdocs/wiki/w/includes/exception/MWExceptionHandler.php(199): MWExceptionHandler::logError(Object(ErrorException), 'error') #1 /homepages/21/d204069791/htdocs/wiki/w/includes/AutoLoader.php(81): MWExceptionHandler::handleError(2, '"continue" targ...', '/homepages/21/d...', 297, Array) #2 /homepages/21/d204069791/htdocs/wiki/w/includes/AutoLoader.php(81): require() #3 [internal function]: AutoLoader::autoload('FormatJson') #4 /homepages/21/d204069791/htdocs/wiki/w/includes/exception/MWExceptionHandler.php(593): spl_autoload_call('FormatJson') #5 /homepages/21/d204069791/htdocs/wiki/w/includes/exception/MWExceptionHandler.php(136): MWExceptionHandler::logException(Object(DBConnectionError)) #6 [internal function]: MWExceptionHandler::handleException(Object(DBConnectionError)) #7 {main} thrown in /homepages/21/d204069791/htdocs/wiki/w/includes/exception/MWExceptionHandler.php on line 624