Workflow is activated but could not be started error for all workflows

Questions
1

Describe the problem/error/question

I can’t start any workflow. The activate toggle in the UI works, the workflow gets activated but immediately transitions into a red active state with a red danger sign saying: *The workflow is activated but could not be started. Click to display error message.
*
I should add that despite this error message workflows work for some very short time and then stop working.

What is the error message (if any)?

Upon clicking on Click to display error message referenced above I get this empty error notification on the bottom right corner of the UI:

Problem activating workflow

The following error occurred on workflow activation:

(The error message is indeed empty and I have copied the full message)

Please share your workflow

It happens for all workflows even a single schedule trigger like below

Share the output returned by the last node

Information on your n8n setup

  • n8n version: 1.117.3
  • Database (default: SQLite): postgres
  • n8n EXECUTIONS_PROCESS setting (default: own, main): The environment variable is not set
  • Running n8n via (Docker, npm, n8n cloud, desktop app): docker
  • Operating system: Ubuntu 24.04.3 LTS
2

Hey there!

And welcome!

Check your credentials in your nodes, or maybe the date/time for your n8n instance (or workflow in its own settings)… hard to pin the issue without your workflow(you can share it here after you click </> button and paste .

3

Hey, thank!

The workflow I have posted above does not work too. I think it does not depend on the workflow. I’m planning to do a fresh install for test.

Edit: Fresh install has the same issue.

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