Google Docs API not working

Goal:
I am trying to Get brand guidelines from Google Doc so an agent can create content based on the guidelines.

What I’ve done:
I’ve connected Google Docs API and n8n, but every time I try to test the step I get the following error message:

Problem running workflow

The workflow has issues and cannot be executed for that reason. Please fix them first.

I have no other information about the error.
I have disconnected and re-connected the Google Docs API.

Additional context:
n8n is free trial version, Google also free trial - personal account.
I initially tried connecting to Notion page, but ran into a similar problem when testing the step.
My goal is to build the agents described in this video: https://www.youtube.com/watch?v=Hm0DZtiKUI8

Did you try opening the Google Docs Node to see if it has logged any error? Can you share your workflow?

Here’s a screenshot of the workflow when I click on “Test”. It’s unclear where the error is happening, what do you think?

It doesn’t seem like Google Docs is the problem then? Do you have a red error icon on this node in your workflow graph?

I see it now, it was the initial workflow trigger. Thanks!