Is there any guarenteed way to prevent this error.
I am running the app from a github repository and I get this error when its on private and public, and it has previously run perfectly fine from the same repository (only change to code was added comments).
I ran into the same issue when I redeployed the app after making a few changes in my Github repo. I changed the app URL, and it worked fine.
Another user waited for 30 minutes, and it was resolved, you can find the post here: