Session Warning

"Warning: There is something wrong with your betfair session token"

Is there anyway to make sure that MFP just closes instead of prompting me?

We've added it to the feature request list but I would not recommend you to leave this problem alone. Does the problem happen frequently?
You should get an advice from BetFair why they close your session.
The technical details are: the API returns NO_SESSION error message more than 20 times.

It doesn't happen very often .. once every couple of weeks.