Failed to submit report to server: Sequence contains no elements

Get error when running a Test Connection after skyWATS install.  here's the full message, wondering if anyone has seen this error before.

Creating simple UUT report
operation code 10 (SW Debug)
PN: WATS API TEST, SN: 123123456789, Rev: 1
Adding part info, misc info, numeric test
Submitting UUT...
Failed to submit report to server: Sequence contains no elements
Detailed error report in wats.log