Mark Clint
10/15/2025, 5:05 AMVapi Support Bot
10/15/2025, 5:06 AMcall.in-progress.error-vapifault-worker-died error indicates a failure in the Vapi processing pipeline, often due to configuration issues or unexpected inputs. As a first step, review your assistant and workflow settings in the Vapi dashboard to ensure all required fields are correctly filled and no misconfigurations exist.
Tip: Pay special attention to model selection, prompt fields, and tool configurations, as missing or invalid values can cause immediate call failures.
If the issue persists after verifying your configuration, consider reaching out to Vapi support with your call IDs for deeper investigation.
Sources:
- [Call ended reasons (Vapi documentation)](https://docs.vapi.ai/calls/call-ended-reason)
- [Debugging voice agents (Vapi documentation)](https://docs.vapi.ai/debugging)Mark Clint
10/15/2025, 5:14 AMSahil
10/15/2025, 9:35 AMRuddy Paz Demiquel
10/24/2025, 5:21 PMChiranjeet Mishra
10/28/2025, 2:51 PM