My copter skews in one direction

My drone skews in one direction, directly in direction of one of the motors
When I try to start fling, I move left stick and exactly when it is going to fly, it skews in one direction
What can I do with it

Hello @Zhanysbek , welcome to the community.

That is usualy a sight that you motor ordering in wrong. Please test it again using Mission Planner Motor test. The correct order is ABCD, not 1234