This error isn’t specific to running a Google Sheet query, right? It happens as soon as you try to load the New Query screen? What exact steps did you follow when setting up Redash?
I was able to connect to a Microsoft Server source perfectly. I added some queries, dashboard. Everything was fine. Then I added the Google Sheet source, and now, everytime I go to ‘Create’ -> ‘New Query’ I get the error.
The Docker containers emit logs to their stdout. Can you share what steps you took to setup the data source? Did you upload a key file for the service account?