Inconsistent functionality on CommentThreads: insert on Youtube DATA API

i could need some help with the Youtube data API , i have a server in which utilizes the Youtube API in adding a youtube comment using JS , it's quiet simple :

 const snippet = {       snippet: {         videoId:videoId,        topLevelComment:{           snippet:{              textOriginal:message             }          }        }      };    axios({      method: 'POST',      url: 'https://www.googleapis.com/youtube/v3/commentThreads?part=snippet&alt=json&access_token='+access_token,       data : snippet    })

This used to work without any issues , but since yesterday, it stopped working , giving me this error :

"code": 400,"message": "The API server failed to successfully process the request. While this can be a transient error, it usually indicates that the request's input is invalid. Check the structure of the <code>commentThread</code> resource in the request body to ensure that it is valid."

Now the bizarre thing is that , testing in a sandbox online with an axios client , this works , i tried with postman , it works , in the youtube code sample sandbox , it works and i'm able to add the comment using an access token , but in my server , it fails even though all of the data is passing correctly , it fails , even tho it is the exacty same request , giving me that error..

My server is hosted on heroku.

The quota limit is not reached , it is far from reached sine the api is only used once in a while.

I tried passing my API Key , but it's the same with or without it in all the above cases.

I don't know what to do from this point i'm utterly confused.

Any help would be appreciated , thank you.