Fine
the machine key is changed i guess
–so kindly go to ORCHESTRATOR and get the machine key of your machine from MACHINE tab
–once after that come back to your machine and open your robot tray and in that open settings and update your machine key and connect now to the orchestrator
this would work for sure
for more info onthis
kindly try this and let know for any queries or clarification
Cheers @RajeshSwarnkar