Fatal error: Uncaught Error: Interface "Lcobucci\JWT\Signer" not found in /var/www/html/API_Forum/vendor/lcobucci/jwt/src/Signer/OpenSSL.php:28 Stack trace: #0 {main} thrown in /var/www/html/API_Forum/vendor/lcobucci/jwt/src/Signer/OpenSSL.php on line 28