The CA Data Aggregator (DA) and CA Performance Manager servers are out of synchronization for time.
When logging into the DA OpenAPI tool, the CAPM server provides user access control.
When logging in the DA requests SSO authorization for the users access from CAPM.
CAPM sends back an SSO token in the URL returned to the DA for valid user access authorization by the DA.
The token contains a value composed of different data points, including the current time. When the servers are not in synchronization for time, the SSO token fails to be read properly.