Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format.

[Vuyiswa]

Good Day 

I am using Ajax-manager

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
     <AjaxSettings>

                <telerik:AjaxSetting AjaxControlID="paymentTypeList">
             <UpdatedControls>
                                  <telerik:AjaxUpdatedControl ControlID="paymentTypeList"  ></telerik:AjaxUpdatedControl>
                      <telerik:AjaxUpdatedControl ControlID="tbxChargeAmount"  ></telerik:AjaxUpdatedControl>

             </UpdatedControls>
         </telerik:AjaxSetting>

 now this works on Chrome  but not in IE, in IE 10 it gives me an error 

 

SEC7115: :visited and :link styles can only differ by color. Some styles were not applied to :visited.
Accounts.aspx
SCRIPT5022: Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format.
Telerik.Web.UI.WebResource.axd, line 9 character 15475
SCRIPT5022: Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format.
Telerik.Web.UI.WebResource.axd, line 9 character 15475
SCRIPT5022: Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format.
Telerik.Web.UI.WebResource.axd, line 9 character 15475

more Info again 

Unhandled exception at line 2610, column 1 in http://localhost:58443/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager1_TSM&compress=1&_TSM_CombinedScripts_=;;AjaxControlToolkit,+Version=4.1.50927.0,+Culture=neutral,+PublicKeyToken=28f01b0e84b6d53e:en-US:c95f669f-226b-4768-8ab5-43ac217de4dd:ea597d4b:b25378d2;Telerik.Web.UI,+Version=2012.2.607.40,+Culture=neutral,+PublicKeyToken=121fae78165ba3d4:en-US:08ccafd1-fc13-48c0-b85b-a439ce2f6884:16e4e7cd:86526ba7:874f8ea2:ed16cbdc:f7645509:24ee1bba:7165f74:58366029:1e771326:f9b9258;AjaxControlToolkit,+Version=4.1.50927.0,+Culture=neutral,+PublicKeyToken=28f01b0e84b6d53e:en-US:c95f669f-226b-4768-8ab5-43ac217de4dd:923aa3cc:853c2e0b:f9ae838a:782b16ab:d754780e:1e088fb:52c703eb:46f97eb1:50114f04:f48dface:28a7831e

0x800a138f - JavaScript runtime error: Unable to get property 'id' of undefined or null reference

Thanks