Fatal error: Uncaught Error: Interface "Cose\Algorithm\Mac\Mac" not found in C:\xampp\htdocs\bilipoa\vendor\web-auth\cose-lib\src\Algorithm\Mac\Hmac.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bilipoa\vendor\web-auth\cose-lib\src\Algorithm\Mac\Hmac.php on line 14