AJAX Accordion Control error

Question

I have use AJAX Accordion Control in master page. when i click any content page and insert some data it works fine for first two times but after that the data not inserted and  show following error and when i run on local its work fine but the issue occurred when i upload the project in server.

var Page_ValidationActive = false; if (typeof(ValidatorOnLoad) == "function") { ValidatorOnLoad(); } function ValidatorOnSubmit() { if (Page_ValidationActive) { return ValidatorCommonOnSubmit(); } else { return true; } } Sys.Application.initialize(); Sys.Application.add_init(function() { $create(AjaxControlToolkit.AccordionBehavior, {"ClientStateFieldID":"ctl00_Accordion1_AccordionExtender_ClientState","ContentCssClass":"accordionContent","FadeTransitions":true,"FramesPerSecond":40,"HeaderCssClass":"accordionHeader","HeaderSelectedCssClass":"accordionHeaderSelected","id":"ctl00_Accordion1_AccordionExtender","requireOpenedPane":false}, null, null, $get("ctl00_Accordion1")); })

I have use .net 3.5 framwork with sql server 2012. Please help me.