Hi. Today i crashed into a tree, and the drone was laying about 5 meters from the crash site. The only visible damage, was the props and a small crack in the upper-hull. I drove home, and the drone was not good at holding the position, drifted 10-15cm sideways, and same up and down. I calibrated the IMU, and now it still drifting round, but now i saw some shaking, specially after take-off. Anywhere who knows, what is gone wrong ?