Requested unknown parameter 'CategoryName' for row 0, column 0. How can I see the actual column name are being passed to

I am trying to list the record from JS  datatable   . My html is given below

@model LibraryBooks.Models.ViewModels.CategoryVM
@{
    Layout = "~/Views/Shared/_Layout.cshtml";
}<table id="tblData" class="table table-striped table-bordered" style="width:100%"><thead class="thead-dark"><tr class="table-info"><th>CategoryName</th><th></th></tr></thead><tbody></tbody></table>

@section Scripts{
    <script src="~/js/Category.js"></script>
}

Category.js

Category.js

var dataTable;

$(document).ready(function () {
    loadDataTable();
});


function loadDataTable() {
   
    dataTable = $('#tblData').DataTable({"ajax": {"url": "/Admin/Category/GetAll"
        },"columns": [
            { "data": "CategoryName", "width": "60%" },
            {"data": "id","render": function (data) {
                    return `<div class="text-center"><a href="/Admin/Category/Upsert/${data}" class="btn btn-success text-white" style="cursor:pointer"><i class="fas fa-edit"></i> </a><a onclick=Delete("/Admin/Category/Delete/${data}") class="btn btn-danger text-white" style="cursor:pointer"><i class="fas fa-trash-alt"></i> </a></div>
                           `;
                }, "width": "40%"
            }
        ]
    });
}

Model class

using LibraryBooks.Models;
using System;
using System.Collections.Generic;
using System.Text;

namespace LibraryBooks.Models.ViewModels
{
    public class CategoryVM
    {
        public IEnumerable<Category> Categories { get; set; }
        public PagingInfo PagingInfo { get; set; }
    }
}


Category mdeols

namespace LibraryBooks.Models
{
    public class Category
    {
        [Key]
        public int Id { get; set; }

        [Display(Name="Category Name")]
        [Required]
        [MaxLength(50)]
        public string CategoryName { get; set; }
    }
}

Controller

  public IActionResult Index()
        {
            return View();
        }

        

        [HttpGet]
        public IActionResult GetAll()
        {
            var allObj = _unitOfWork.Category.GetAll();  // The record is coming here but in data table it shows   Requested unknown parameter  'CategoryName'
            return Json(new { data = allObj });
        }

Please help , The column of the model is not being taken in html