Not able to render page in IE

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ASP.NET

I have a web page that has few text boxes, telerik:RadDateTimePicker, telerik radgrid and asp buttons(Search and Reset).

On click of Search button, an API will be called which takes input from the textbox on the UI and gives response in a class object. I convert that class object data to a datatable and bind that to the telerik radgrid.

This works fine in local environoment and on one of the live server. But on the new server in IE, page is not able to render data on button click and loader keeps moving on. There is no exception coming on server side. When I placed the "EndRequestHandler" function on aspx, I received the following error on javascript

"Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 12019"

Code on aspx

           function EndRequestHandler(sender, args) {
               if (args.get_error() != undefined) {
                   args.set_errorHandled(true);
               }
           }

I tried a different page without update panel, in this case after sometime of button click IE says

"PAGE CANNOT BE DISPLAYED"

It is running fine on Google Chrome

I tried every possible solution of google but nothing worked. Can anyone help??