The call id is: 84860f69-af9c-437d-9a62-207eead87c5a For now I am experiencing an issue with starting a call. It simply hangs up from the start. May it be related to the voice id used in the fallbackPlan option? https://cdn.discordapp.com/attachments/1384856543777787904/1384856544029442088/image.png?ex=6853f3a9&is=6852a229&hm=5867f02ad85abce121e8b665a7596d7939b9b200322017d0268d0b08e1141f94&

The error "pipeline-error-eleven-labs-voice-not-found" typically means the specified ElevenLabs voice ID (in your primary or fallbackPlan) could not be found or is not available. This can happen if the voice ID is incorrect, not synced, or not present in your ElevenLabs account ([docs](https://docs.vapi.ai/calls/call-ended-reason), [fallback plan](https://docs.vapi.ai/voice-fallback-plan), [ElevenLabs setup](https://docs.vapi.ai/customization/custom-voices/elevenlabs)). Could you please confirm if the voice IDs listed in your fallbackPlan are present and available in your ElevenLabs account and have been synced with Vapi? Sources: - [Vapi Call Ended Reasons](https://docs.vapi.ai/calls/call-ended-reason) - [Voice Fallback Plan](https://docs.vapi.ai/voice-fallback-plan) - [ElevenLabs Custom Voice Setup](https://docs.vapi.ai/customization/custom-voices/elevenlabs)

Please switch the fallback voice option to a different voice or different provider, then try switching the primary voice in the same fashion. Let us know where you encounter the error in this process or if it continues indefinitely