Help... Invalid schema specified

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

(My Response to ST…)
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": "3RD TOKEN"
    }
}

Is there anyone who know “Invalid schema specified”??
Why originatingInteractionType is null…??