Fatal error: Uncaught Error: Interface 'Lcobucci\JWT\Validation\Constraint' not found in C:\xampp\htdocs\kit\vendor\lcobucci\jwt\src\Validation\SignedWith.php:6 Stack trace: #0 {main} thrown in C:\xampp\htdocs\kit\vendor\lcobucci\jwt\src\Validation\SignedWith.php on line 6