Could Not Connect to EpisodeAssistant Process

I purchased Episode 6.0.1.3 for $295 to use the full features. I installed it using the serial key provided. But on trying to access the application, I receive the error message “Could not connect to EpisodeAssistant process. Application needs to quit." Can anyone help me with this issue? Currently I am using my old version but really love to try the new one. Help please.
