All types and brands of planes fail from time to time. Double check your fittings and attachments. Just go buy another plane, it's a cheap airplane antway, not a $10,000 dollar Jet in which many guys are having trouble with them disintergrating in the air, read "Jet Legends". Sometimes expeience in construction can catch some manufacturer's shortcomings. 90% of ALL Arf's on the market need beefing up here and there...

You probably got a "bad one", with a weak point in the wing. Perhaps Nitro will help you out, maybe not. It's the "luck of the draw", perhaps you can pay 3 times more for another brand, and you may or may not experience the same issues.