Jack
01/08/2026, 6:31 PMVapi Support Bot
01/08/2026, 6:32 PMcall.in-progress.error-vapifault-worker-not-available) indicates a Vapi system-level issue, not a configuration problem on your end.
To resolve this, please contact Vapi support and provide your call_id and account email for investigation.
Example support request:
Subject: All inbound calls failing - vapifault worker not available
Details: All production calls fail with error "call.in-progress.error-vapifault-worker-not-available". Call ID: [your_call_id], Account: [your_email]
According to the documentation, this is the recommended next step for vapifault errors: [Vapi Call Ended Reasons](https://docs.vapi.ai/calls/call-ended-reason).
Source:
- [Vapi Call Ended Reasons](https://docs.vapi.ai/calls/call-ended-reason)jamecl
01/08/2026, 6:35 PMbatman
01/08/2026, 7:26 PMbibs
01/08/2026, 7:28 PMChiranjeet Mishra
01/08/2026, 8:46 PM