Soarrich:

What kind of control horn do you have on the aileron? How does it attach?

If that's the kind that screws down to the surface plan on buying a new plane very soon. Do not fly it with that type of control horn!

The plane is designed to work with stud type horns, not with "fasten to the surface" type horns. You are probably screwing into balsa wood which will last only until you really need it, then the horns will probably detach.

TF