Fatal error: Uncaught Error: Class "Wikimedia\WikiPEG\PEGParserBase" not found in /var/www/html/w/vendor/wikimedia/parsoid/src/ParserTests/Grammar.php:19 Stack trace: #0 {main} thrown in /var/www/html/w/vendor/wikimedia/parsoid/src/ParserTests/Grammar.php on line 19