Fatal error: Uncaught Error: Class 'PhpParser\Lexer' not found in C:\xampp\htdocs\admin\vendor\nikic\php-parser\lib\PhpParser\Lexer\Emulative.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\nikic\php-parser\lib\PhpParser\Lexer\Emulative.php on line 19