Hi @VidhyaAk1 ,
It seems you're using CNAME implemetation and per screenshot attached POST calls intiated from stage.yourdomaim.com are rejected from server based upon CORS policy (smtetrics.yourdomain.com) hence resulting in status code 401.
In order to validate above hypothesis, Can you initiate same hit from production domain? Or modify current interact hit header using web developer tools.
If it is CORS blocking issue then DNS configuration needs to be updated to add stage.yourdomaim.com to list of allowed domains.