LBR iisy 15 R960

I have an issue while programming LBR iisy 15 R960 on attatched pad. I constantly get problems with moving robot while not exceeding mechanical limits. I am able to move in axis mode but not cartesian in world mode. Pad does not show any error but robot will not move in any mode (event with gripper button) unless restarted and same issue will happen if I try to use world reference system againg.