Hi @Christy_Marie! In your case, I see you've already located a possible cause that explains the problem. A timeout while authenticating Aggregate in Google's API could produce the error.
I've written up an analysis of your problem and @Jeff_Davids' problem here: Google Sheet Publisher Issue - Somehow DB entities for publisher got into problem state - #9 by ggalmazor
Even though we have a good lead here with the timeout, I'd recommend you to make the test I suggested @Jeff_Davids. Could you try to pull the form and all its submissions using Briefcase? If that goes well, it's telling us that there probably no problems in Aggregate's data.