What does this mean?

❓Webchat

This is happening after a playbook hands off the conversation to the main agent. Playbooks working great, but when the main agent is about to start, it gets an error, I dont get it.

{
"time": 1776863742876,
"turnID": "ll8eb0v7u",
"type": "debug",
"payload": {
"ref": {
"type": "agent",
"nodeID": "global-agent-4on05ik",
"agentID": "67db2b56cbe88befffef4623",
"diagramID": "64dbb6696a8fab0013dba194",
"agentName": "Main Agent",
"diagramName": "Default"
},
"level": "warn",
"message": "execution failed",
"context": "Agent",
"metadata": {
"error": {
"name": "ApiError",
"status": 400
},
"latency": 250,
"VoiceflowCreditUSDConsumption": {}
}
}
}