Fatal error: Uncaught Error: Class 'PhpParser\PrettyPrinterAbstract' not found in /home/app/htdocs/message_gateway/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php:16 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinter/Standard.php on line 16