Not able to create new version for our app in Appstore

For now I was able to add new version. I think the problem is fixed

Its been fixed now. I was able to create a new version

The issue seem to have started again today. As a the time of this comment the issue has been going on for hours.

I have been facing this problem for about 9 hours. When I check browser's network tab. There is an error with status code 409

    "status" : "409",
    "code" : "ENTITY_ERROR.RELATIONSHIP.INVALID",
    "title" : "The provided entity includes a relationship with an invalid value",
    "detail" : "You cannot create a new version of the App in the current state.",
    "source" : {
      "pointer" : "/data/relationships/app"
    }

I encountered this problem in the new version yesterday, and it has not been solved today. Could you please help me? I am very anxious and it took me 20 hours