Good morning Robiul,
What version of BP are you running? Also, what is the status of the resource in the control room, and are any other sessions running? That is the message it gives when there is already something running on the Digital Worker and the run mode doesn't allow the process you're trying to run to execute (e.g. a second exclusive process or a second foreground process).
-Robin
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Robin Toll
Senior Technical Consultant
Blue Prism
Professional Services Americas
Infrastructure & Architecture Specialist
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