Mailerlite failure to authenticate

Day 1 newbie question…thank you for the assistance!

I am trying to create a workflow to add a new subscriber to Mailerlite. I found this thread where I was able to add an address. However, I would like to have the attached workflow if possible. I keep running into the following error:

It seems as though it’s a credentialing error. However, I don’t have the same credentialing error when I use this templated sequence.

So I assume it’s not an authentication issue.

So my question is the workflow I would like to have setup incorrectly where the Mailerlite is failing to authenticate?

  • n8n version: 1.90.2
  • Database (default: SQLite): not sure what to put here
  • n8n EXECUTIONS_PROCESS setting (default: own, main): not sure what to put here
  • Running n8n via (Docker, npm, n8n cloud, desktop app): n8ncloud
  • Operating system: MacOS Monterey

Open that tool and post a ss. Need to see the actual error.