the original outage has been fixed a few hours ago, you seem to have run into a separate issue. Can you share your appId and/or sessionId? Also can you try removing the SharePoint connection and re-adding it to see if that fixes the issue?
As I said I could see the form aand create connections but my original connection was lost and I was unable to refresh or fix it because it says "Try again" when I hit refresh. I believe the outage caused this because I was working on the form ans saving my changes when the outage happened. I tried creating another connection to the same list which was created but no data were coming whether by replacing the connection in form or even when I created new forms in the app. When I tried replacing the DataCards with the new Data Source (which is actually the same list) it took about an hour saying it was working on it till I actually closed the app. I want to not also that the App Studio (web version) was extremely slow doing ANY task. I restored an older version (current live version) and shutdown the machine yesterday night. Today morning I opened it it was much faster (still slower than usual but okay) and the form was working with the connection and data but I just lost the few last changes which is OK given the disaster that could've costed me all the weeks of work that's been done.
That being said,, I believe there should be a mechanism by Microsoft to prevent damage of PowerApps forms when something like this happens maybe like keeping a crash copy (like Office application) that has your recent changes with the previous working settings. Hopfully this is useful to everyone in this post.
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