Quick tip: NEVER buy any planes from Abacus, you can now see why. :-/
As for the problem, it sounds like it's probably a corrupt file, sorry, but I do not know how to deal with these other than replacing the corrput version with a working version, but I do not know where you can get that.
Just let me reiterate that quick pointer, as it is important: NEVER buy any planes from Abacus.