Fatal error: Uncaught Error: Interface "Lcobucci\JWT\Validation\Constraint" not found in /var/www/html/API_Forum/vendor/lcobucci/jwt/src/Validation/ValidAt.php:6 Stack trace: #0 {main} thrown in /var/www/html/API_Forum/vendor/lcobucci/jwt/src/Validation/ValidAt.php on line 6