I get the following response from the server. Sorting does not work, probably due to the missing value of recordsTotal, in addition, the pagination is multiplied. What could be the reason?
Any help is appreciated.

Here is the response:

{
    "draw": null,
    "data": [
        {
            "DT_RowId": "row_1",
            "Id": 1,
            "RowGuid": "B8ED08D7-41DF-48AD-88E1-19961C2D2E5F",
            "AuthorId": 1,
            "CreatedOn": "2019-09-16T19:35:48.767",
            "ModifiedOn": null,
            "IsRemoved": false,
            "IsActive": true,
            "FirstName": "Karolina",
            "LastName": "Stasiak",
            "MiddleName": null,
            "BirthDate": "1987-09-06T00:00:00",
            "Email": "karolina.stasiak@op.pl",
            "PhoneNumber": "8906785443",
            "Street": "Wojska Polskiego",
            "StreetNumber": "Wojska Polskiego",
            "PostalCode": "71-567",
            "District": "zachodniopomorskie",
            "Country": "Polska",
            "City": "Szczecin"
        }
        
    ],
    "recordsTotal": null,
    "recordsFiltered": null,
    "error": null,
    "fieldErrors": [],
    "id": null,
    "meta": {},
    "options": {},
    "files": {},
    "upload": {
        "id": null
    },
    "debug": null,
    "cancelled": []
}