Fatal error: Uncaught Error: Interface 'PhpParser\Parser' not found in D:\xampp\htdocs\psp\backend\vendor\nikic\php-parser\lib\PhpParser\Parser\Multiple.php:9 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\nikic\php-parser\lib\PhpParser\Parser\Multiple.php on line 9