Did the Iron Maiden KFLL-KTUL flight. When I started MyAAS, it said invalid flight ID. Did it anyway, with KC centre being an Irons fan like me. Can't file the flight.
I'm guessing that you are looking for a way to manually PIREP the flight? With an invalid FlightId, myAAS2 shouldn't have let you fly the flight.
As for the error, not really sure. Can you make sure you are running the latest version? Should be 2.0.2020 I know there was a fix for something similar in 2.0.2018.
Other that that, I'll have to do some investigating.