The adjustment has an invalid combination of types

{
  "error": {
    "type": "request_error",
    "code": "adjustment_invalid_combination_of_types",
    "detail": "The adjustment specifies a combination of items whose type is not compatible together.",
    "documentation_url": "https://developer.paddle.com/errors/adjustments/adjustment_invalid_combination_of_types"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}