hi i had this issue before where the ATC arm was doing the tool change and hesitated or stopped for some reason ? i was able to recover it by going through CUSTOM 1 page and Tool CHANGE recovery steps however this time around the Arm is just stuck at the 90 degree position and it's got the tool from the magazine

the alarm reads PS3 MUST BE ON

does any one got a clue what to do ? ? the PS3 sensor doesn't come on when i do the tool change recovery i tried to clean it but nothing.