Fatal error: Uncaught Error: Interface "MediaWiki\Parser\Hook\ParserFirstCallInitHook" not found in /var/www/html/w/extensions/MathSearch/includes/MathSearchHooks.php:30 Stack trace: #0 /var/www/html/w/includes/AutoLoader.php(275): require_once() #1 [internal function]: AutoLoader::autoload('MathSearchHooks') #2 /var/www/html/w/includes/registration/ExtensionRegistry.php(580): is_callable('MathSearchHooks...') #3 /var/www/html/w/includes/registration/ExtensionRegistry.php(332): MediaWiki\Registration\ExtensionRegistry->exportExtractedData(Array) #4 /var/www/html/w/includes/Setup.php(294): MediaWiki\Registration\ExtensionRegistry->loadFromQueue() #5 /var/www/html/w/includes/WebStart.php(86): require_once('/var/www/html/w...') #6 /var/www/html/w/index.php(50): require('/var/www/html/w...') #7 {main} thrown in /var/www/html/w/extensions/MathSearch/includes/MathSearchHooks.php on line 30