All Mailchimp Trigger throw Bad request errors

Describe the problem/error/question

Since some months all Mailchimp triggers don’t work anymore. The API connection to Mailchimp works, because the getMember node returns data from mailchimp .

What is the error message (if any)?

Problem running workflow - Bad request - please check your parameters

Trigger: onSubscribe: The resource submitted could not be validated. For field-specific details, see the ‘errors’ array.

Please share your workflow

Share the output returned by the last node

Information on your n8n setup

  • n8n version: 1.106.3
  • Database (default: SQLite): SQLite
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system: WIN11

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