Can't get past Warning re unexpected ending in last session

I had Navigraph but deleted it and closed the account, and I just deleted Simbrief and rebooted the pc with same result. I bought the sim from the microsoft store but can’t find where to download it, and not have to pay again. When i log into the store it knows my name, but when I go to NSFS 2020 to reload it, I can only buy it. Never used the Xbox app. System ran fine, but yesterday, no dice, out of the blue. Any help would be appreciated.

Thanks