Fatal error: Uncaught Error: Class 'PhpParser\ParserAbstract' not found in C:\web\chatbot-telegram\vendor\nikic\php-parser\lib\PhpParser\Parser\Php7.php:19 Stack trace: #0 {main} thrown in C:\web\chatbot-telegram\vendor\nikic\php-parser\lib\PhpParser\Parser\Php7.php on line 19