WhatsApp & IA Agent | Send Message Problem

I am new to using n8n, I want the simplest flow possible, and then scale up as needed, however I am often faced with the following error:

Flow:

Information about my n8n configuration

  • Version of n8n: 1.82.1
  • Database: PosgreSQL**
  • Running n8n via: Docker / Hostinger VPS**
    Operating system: Ubuntu 24.04

In your Meta App Dashboard, go to Webhooks and delete what you see there:

Then try using your trigger again.

:point_right: If my reply answers your question, please remember to mark it as a solution.

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