Fatal error: Uncaught Error: Interface 'League\OAuth1\Client\Signature\SignatureInterface' not found in C:\xampp\htdocs\admin\vendor\league\oauth1-client\src\Signature\Signature.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\league\oauth1-client\src\Signature\Signature.php on line 8