DuplicateCollection must add a unique title for duplicate collection names

[Mark_Tanashchuk]

When I try to connect graphql I get this error:

But my scheme is as simple as possible and when I invoke validation manually, I get 0 errors

{
  "title": "plans",
  "bsonType": "object",
  "required": [
    "users",
    "price",
    "name",
    "isNight"
  ],
  "additionalProperties": false,
  "properties": {
    ... 
  }
}

How can this error be fixed?

[Mark_Tanashchuk]

Duplicated the scheme and all the data into another collection, deleted the first collection and the error is gone. I think the question can be considered closed.