The Federation Service has detected a discrepancy between its signing and verification methods. If this condition is caused ...

The Federation Service has detected a discrepancy between its signing and verification methods. If this condition is caused by a change in trust policy, the Federation Service will continue to use the old trust policy until the condition is resolved. If this condition occurs at startup, the Federation Service will not be able to service requests until the condition is resolved. 
Signing certificate thumbprint: %1 

Neither the signing certificate nor any certificate in its chain was found in the verification certificates collection. 

User Action 
Add the signing certificate or a certification authority from its chain to the collection of verification certificates.