Collateral default contract registration request was failed

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "type": "object",
    "title": "Collateral default contract registration request was failed",
    "description": "This event occurs when the request of default contract registration is fail",
    "required": [
        "external_id",
        "errors"
    ],
    "properties": {
        "external_id": {
            "type": "string",
            "title": "External ID",
            "description": "External identifier for operation provided by client.",
            "examples": [
                "47c3cca0-3553-11ee-be56-0242ac120002"
            ]
        },
        "errors": {
            "type": "array",
            "title": "Error messages",
            "description": "Descriptions of errors when an operation fail",
            "additionalProperties": false,
            "items": {
                "$id": "#/properties/error_details/items",
                "anyOf": [
                    {
                        "$id": "#/properties/errors/items/anyOf/0",
                        "type": "object",
                        "title": "Errors object",
                        "required": [
                            "code",
                            "description"
                        ],
                        "examples": [
                            {
                                "code": "F1900023",
                                "description": "some error message"
                            }
                        ],
                        "properties": {
                            "code": {
                                "$id": "#/properties/errors/items/anyOf/0/properties/code",
                                "type": "string",
                                "title": "Code of error",
                                "examples": [
                                    "F1900023"
                                ]
                            },
                            "description": {
                                "$id": "#/properties/error_details/items/anyOf/0/properties/description",
                                "type": "string",
                                "title": "An Error Message",
                                "examples": [
                                    "Failure message"
                                ]
                            }
                        },
                        "additionalProperties": true
                    }
                ]
            },
            "examples": [
                [
                    {
                        "code": "F1900023",
                        "description": "Failure message"
                    },
                    {
                        "code": "F1900024",
                        "description": "Failure message"
                    }
                ]
            ]
        }
    }
}