When upload on server then respond 500 internal server error - angularjs

Question

It is not hit by service and on console Failed to load resource: the server responded with a status of 500 (Internal Server Error)
http://newalturathadmin.alturath.net/api/ApiFailureDonatorMobile?currentPage=1&recordsPerPage=20&Name=&DateFrom=&DateTo=
public class ApiFailureDonatorMobileController : Application.Global.BaseControllers.ApiControllerBase
{
DateTime frmDate;
DateTime toDate;
public HttpResponseMessage Get(int currentPage, int recordsPerPage, string Name = "", string DateFrom = "", string DateTo = "")
{
try
{
var dataEntryQuery = OUnitOfWork.FailureDonatorRepository.GetAll().OrderByDescending(x => x.Id);
if (DateFrom != null || DateTo != null)
{
frmDate = DateTime.ParseExact(DateFrom, "dd-MM-yyyy", CultureInfo.InvariantCulture);
if (DateTo != null)
{
toDate = DateTime.ParseExact(DateTo, "dd-MM-yyyy", CultureInfo.InvariantCulture);
}
toDate = toDate.AddDays(1);
dataEntryQuery = dataEntryQuery.Where(x =>
(
(!string.IsNullOrEmpty(Name.Trim()) ?
(!string.IsNullOrEmpty(x.Project.ProjectName.Trim()) ? x.Project.ProjectName.Contains(Name.Trim()) : 1 == 2) : 1 == 1)
&& x.Createdon >= (string.IsNullOrEmpty(DateFrom) ? x.Createdon : frmDate.Date)
&& x.Createdon <= (string.IsNullOrEmpty(DateTo) ? x.Createdon : toDate.Date)
)).OrderByDescending(x => x.Id);
}
else
{
dataEntryQuery = dataEntryQuery.Where(x =>
(
(!string.IsNullOrEmpty(Name.Trim()) ?
(!string.IsNullOrEmpty(x.Project.ProjectName.Trim()) ? x.Project.ProjectName.Contains(Name.Trim()) : 1 == 2) : 1 == 1)
)).OrderByDescending(x => x.Id);
}
var _totalCount = dataEntryQuery.Count();
var _totalPages = Math.Ceiling((double)_totalCount / recordsPerPage);
var entries = dataEntryQuery.Skip((currentPage - 1) * recordsPerPage)
.Take(recordsPerPage)
.AsQueryable();
var includeMastersName = (from x in entries.AsEnumerable()
select new
{
Id = x.Id,
Project = x.Project_FK_ID == null ? "" : x.Project.ProjectName,
InvoiceId = x.InvoiceId,
MobileNo = x.MobileNo,
Createdon = x.Createdon,
}).AsQueryable();
var result = new
{
TotalCount = _totalCount,
TotalPages = _totalPages,
AllEntries = includeMastersName
};
return Request.CreateResponse(HttpStatusCode.OK, result);
}
catch (Exception e)
{
return Request.CreateResponse(HttpStatusCode.InternalServerError, e.Message + "-------" + e.InnerException.Message + "-------" + e.StackTrace + "-------" + e.Source); ;
}
return Request.CreateResponse(HttpStatusCode.NotFound, new { resul = "Error" });
}
}