Fatal error: Uncaught Error: Interface "Lcobucci\JWT\Signer\Key" not found in D:\programs\xampp\htdocs\backend-test\vendor\lcobucci\jwt\src\Signer\Key\InMemory.php:16 Stack trace: #0 {main} thrown in D:\programs\xampp\htdocs\backend-test\vendor\lcobucci\jwt\src\Signer\Key\InMemory.php on line 16