I fixed this by myself, It was black cable broken inside plastic cover /damage not visible/
When I check with tool if cables are ok - it was not succesful, I have change cable and for couple of weeks was ok,
today I have anothe issue with charging, now robot is moving to loading station, but again moves in and out,
when I put manually ?with not full battery/, only green light appear on station and do not flash with red,
robot is not loading,
I`ve checked all cables responsible for charging - all are ok,
I can load battery manualy (after removing from robot - using cables)
What could be now - anywone has idea?