I'm getting the following error in the platform cache log, and it appears to be causing major issues with caching in the portal.
"System.Exception: Exception occurred initializing app domain ---> System.Data.SqlClient.SqlException: There is already an object named 'csn_Portal_User' in the database"
There does not appear to be a 'csn_Portal_User' in our AD or user objects in SCSM so I am not sure what this is referencing.