Fatal error: Uncaught Error: Interface "Lcobucci\JWT\Signer" not found in D:\Apache24\www\qilu_sap\back-end\vendor\lcobucci\jwt\src\Signer\None.php:9 Stack trace: #0 {main} thrown in D:\Apache24\www\qilu_sap\back-end\vendor\lcobucci\jwt\src\Signer\None.php on line 9