The Federation Service encountered an error while parsing a security token. The token contained an unrecognized claim namespace. ...

The Federation Service encountered an error while parsing a security token. The token contained an unrecognized claim namespace. 
Token issuer: %1 
Claim namespace: %2 

This request will be denied. 

This error might occur as a result of incompatibilities between AD FS and third-party software. 

User Action 
If this error occurs on the Federation Service and the token issuer is an account partner, it may indicate that custom namespaces should be configured for the partner. 

If this error occurs on the AD FS Web Agent, it may indicate that the token issuer is not properly configured. Contact the token issuer's administrator.