Job Faulted in Orch

Hi,

I have two production Bots working on outlook mail items in subfolders

One Bot never faults completing transactions and carries on running when there is nothing in the queue (subfolder1) as it constantly is waiting for new messages to appear every one minute

The other Bot faults after completing transaction and there is nothing in the queue (subfolder2) it should be replicating the above and waiting for new messages to appear every one minute however it just faults out and i get the error attached

Anyone know anything about this strange behavior?