( ! ) Fatal error: Class 'SimpleSAML\Auth\Source' not found in C:\wamp64\www\simplesamlphp\modules\authYubikey\lib\Auth\Source\YubiKey.php on line 46
Call Stack
#	Time	Memory	Function	Location
1	0.0083	277496	{main}( )	...\YubiKey.php:0