I am having a problem with some Ajax code I wrote for my MVC 5 project, I am trying to implement a search bar for my table using ajax but I am running into this error Failed to load resource: the server responded with a status of 500 (Internal Server Error).

This is my Partial View code which includes the JavaScript Ajax code:

@model IEnumerable<ToDo.Models.Venue>   



@*Search Box*@

@using (Html.BeginForm())

{

    <p>

        <input type=text class=form-control id=txtSearch>

        <span class=btn btn-sm btn-warning id=btnCustomerInc onclick=VenueSearch();>Search</span>

    </p>

}



<table class=table>

    <tr>

        <th>

            @Html.DisplayNameFor(model => model.VenueName)

        </th>

        <th>

            @Html.DisplayNameFor(model => model.VenueType)

        </th>

        <th>

            @Html.DisplayNameFor(model => model.VenueTown)

        </th>

        <th>

            @*blank*@

        </th>

    </tr>



    @foreach (var item in Model)

    {

        <tr>

            <td>

                @Html.DisplayFor(modelItem => item.VenueName)

            </td>

            <td>

                @Html.DisplayFor(modelItem => item.VenueType)

            </td>

            <td>

                @Html.DisplayFor(modelItem => item.VenueTown)

            </td>

            <td>

                @Html.ActionLink(Details, Details, new { id = item.VenueID }, new { @class = btn btn-primary })

            </td>

        </tr>

    }



</table>



<script>

    function VenueSearch() {

        console.log(Venue Search function hit);



        var search = document.getElementById(txtSearch).value;

        console.log(search);



        $.ajax({

            type: GET,

            url: '@Url.Action(VenuesTablePartialView, Venues)',

            data: { searchString: search },

            success: function (data) {



                $('#VenueTable').html(data);

                $('#VenueTable').fadeIn(fast)



            }

        });

    }

</script>

This is my controller action for the partial view:

 [ChildActionOnly]

        public ActionResult VenuesTablePartialView(string searchString)

        {    

            var venues = from v in db.Venues

                         select v;



            //Search

            if (!String.IsNullOrEmpty(searchString))

            {

                venues = venues.Where(v => v.VenueName.ToUpper().Contains(searchString.ToUpper()));

            }





            return PartialView(_VenuesTable, venues.ToList());

        }

    }