[ST Cloud Connected] Help... Invalid schema specified

After Oct 13, My Project(Cloud Connect) gone wrong.
(I don’t change anything)

discoveryRequest
ST->MyServer

{
 "headers": {
  "schema": "st-schema",
  "interactionType": "discoveryRequest",
  "requestId": "F1BB1EA0-A977-4957-8474-1372A3101121",
  "version": "1.0"
 },
 "authentication": {
  "tokenType": "Bearer",
  "token": "토큰"
 }
}

discoveryResponse
MyServer->ST


 "headers": {
  "schema": "st-schema",
  "interactionType": "discoveryResponse",
  "requestId": "F1BB1EA0-A977-4957-8474-1372A3101121",
  "version": "1.0"
 },
 "devices": [
  {
   "deviceHandlerType": "9d742906-5ef5-4c0f-951b-695df93dae8b",
   "manufacturerInfo": {
    "modelName": "MYFAN",
    "manufacturerName": "MYSOFT"
   },
   "externalDeviceId": "4510",
   "friendlyName": "TEST_FAN"
  }
 ]
}

ST->MyServer

{
    "headers": {
        "schema": "st-schema",
        "interactionType": "interactionResult",
        "requestId": "F1BB1EA0-A977-4957-8474-1372A3101121",
        "version": "1.0"
    },
    "globalError": {
        "errorEnum": "BAD-RESPONSE",
        "detail": "Invalid schema specified"
    },
    "originatingInteractionType": "",
    "authentication": {
        "tokenType": "Bearer",
        "token": "토큰"
    }
}

Anyone who know “Invalid schema specified”??