App Not Found message keeps popping up

I’m new to Anvil and have been jumping around a couple different apps - one of the tutorials and one that I’m working on. Starting yesterday and now today I’ll be working on my app and when I click on something the “App Not Found - The app you requested could not be loaded. It may have been deleted or you may not have permission.” message pops up. I’m assuming this is a bug? It’s prohibiting me from getting any work done

Do you have a link to where this issue arises

This is a bit too generic for anyone to help you.

It appears to be an issue only in Chrome, but essentially every time I open an app and press a button I get this pop up

Sign out and back in