Gimbal Shake Error. DJI Mavic.

During my test flight after flying for about 10 min I started getting a Gimbal Shake Error. Sometimes it will also do a Gimbal Overload Error. When flying every few seconds you can see a shake in the gimbal. During the Gimbal Overload it seems to do it at start up and sometimes the camera isn't pointed where it should be. I have sent it back into DJI.