Running Stress test fails

# WORKGROUP Workgroup: Searching for 1 desktop(s). # Could not find VM's in pool for pattern BIO, Error code 501 # WORKGROUP Workgroup: Required desktop(s) are not available, found 0, expected 1 # RUN BIO_RUN1: WorkGroup failed, Error code: 24

I can deply VM with Panner no issue.but running Stress Test does not work for Me