A very detailed write up of what occurred to TWO Bolts at the same DCFC: Stranded: Greenlots DCFC induces “Conditions Not Correct for Shift” | Chevy Bolt EV Forum
A third person indicates they experienced the same problem at a different DCFC as well.
From the description, this appears to be a software issue.
After failed charging at the DCFC, their Bolts encountered an unexpected interaction that resulted in bricking the Bolts (could not start). They did discover an odd work around that got them started again, eventually.