The fix was only applied for FP5. It was not identified that FP6 had exactly the same issue.
I suggest in applying App Lounge FAQ one takes particular notice of the instruction to Try Later.
Not fully proven but say you have a failed anonymous transaction with Play store, then your device may still show on the remote server as “unresolvable” maybe even for 12 hours or so.
So after a failed attempt, don’t spam with more fails, clear storage and stay away for 12 hours. The battery should be well charged as the Store will check for battery level before start of any transaction.