Is your plane electric? If so...

I have an Aspire EP and had the exact same problem. First three flights resulted in my first three crashes. In all cases, it stalled and fell to the left.

I then checked the center of gravity only to find out it was way to far aft. To get the center of gravity to the correct spot (2-1/2 to 2-3/4 behind the front wing edge) I had to move the battery so far forward that it was not longer in the battery bay, but fully forward of the battery bay and above the ESC. I filled the battery bay with foam and rubber banded the battery in the forward bay.

Today, I took the airplane out for a fly and it flew beautifully, nothing to it... Hanger9 really messed up the RTF version of this plane. It's really a good flyer, but only after it is setup correctly.

Best of luck!

Kurt