Fatal error: Uncaught Error: Class "CBOR\Tag" not found in C:\xampp\htdocs\bilipoa\vendor\web-auth\cose-lib\src\Mac\CoseMac0Tag.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bilipoa\vendor\web-auth\cose-lib\src\Mac\CoseMac0Tag.php on line 18