Describe the problem/error/question
The postgres memory node connected to my ai agent is suddenly giving this error "Got unexpected type: undefined". The ai agent was working fine a week ago.
I'm not sure why this is happening...
What is the error message (if any)?
→ “Got unexpected type: undefined”
Please share your workflow
→ too big to paste here…
Share the output returned by the last node
error
Information on your n8n setup
- n8n version: latest version (updated today)
- Database (default: SQLite): default
- n8n EXECUTIONS_PROCESS setting (default: own, main): default
- Running n8n via (Docker, npm, n8n cloud, desktop app): self hosted
- Operating system: MacOs



