MC60 websocket connection error

AT+QIOPEN=“TCP”,“XXX.XXX.XX.XXX”,5001
AT+QISEND=349

POST / HTTP/1.1
Host: XXX.XXX.XX.XXX
Content-Type: application/json
Content-Length: 255

{“Operator”:null,“Kullanici”:{“RolId”:null,“Password”:“000XXXXQ”,“Username”:“xxxyy0029”},“Parametre”:[{“Aci”:11,“Hiz”:“100”,“Tarih”:“2025-01-08T15:40:43”,“KartId”:“SOFOR41”,“Kaynak”:null,“KonumX”:“49.32955704”,“KonumY”:“20.45859528”,“CihazId”:“abcdefg”}]}

When I try to make the above request using WebSocket, I receive the following warnings:

I cannot establish a WebSocket connection. I would appreciate your support regarding this issue.

HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Date: Fri, 10 Jan 2025 06:50:07 GMT
Server: Kestrel
Transfer-Encoding: chunked

80d