My karma stabilizer was working perfectly on my karma drone since I bought it. It was crashed once, but was repairable and has worked fine until recently. The other day, the stabilizer started to move very slowly up and down when I used the control wheel. It was still working, but very slowly. Yesterday it moved it only slightly down, and then only up, and then quit working all together. I tried to calibrate the tilt wheel through the controller, but it wouldn't register the wheel turning. At this point I don't know if it is the controller or the stabilizer, but I really don't want to buy a controller as they are very expensive. Any help would be greatly appreciated!