[500] [Errno 111] Connection refused

I had a make.com X heygen scenario that was working fine before.

But today it suddenly stopped working.

The error is not even in the official documentation, so I don't know what to do, so I ask here

My make.com create an avatar video module input bundle looks like this :

[
{
"test": false,
"title": "2025-04-22 17:15 PM_Youtube Test",
"dimension": {
"width": 1280,
"height": 720
},
"video_inputs": [
{
"voice": {
"type": "text",
"speed": 1,
"voice_id": "bd2e54fc1f944caab7ecf92c76b081f9",
"input_text": "hello world"
},
"character": {
"type": "avatar",
"scale": 1,
"offset": {},
"matting": false,
"avatar_id": "5e3719a4f8884499b373040f979befe2"
},
"background": {}
}
]
}
]

The error appears as follows :

ConnectionError
[500] [Errno 111] Connection refused

Origin
HeyGen

Incomplete execution
The data was saved in the queue of Incomplete Executions.