Can't create a clan

I got this when i try to create a clan !


Server Error in '/' Application.

A potentially dangerous Request.Form value was detected from the client (ctl00$Main$tb_name="<<ENTER>>").

Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. You can disable request validation by setting validateRequest=false in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case.

Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (ctl00$Main$tb_name="<<ENTER>>").

Source Error:


[No relevant source lines]

Source File: c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\0325ffa7\59f7f066\App_Web_ctkyhecl.9.cs Line: 0

Stack Trace:


[HttpRequestValidationException (0x80004005): A potentially dangerous Request.Form value was detected from the client (ctl00$Main$tb_name="<<ENTER>>").]
System.Web.HttpRequest.ValidateString(String s, String valueName, String collectionName) +11103979
System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, String collectionName) +71
System.Web.HttpRequest.get_Form() +178
System.Web.HttpRequest.get_HasForm() +11104215
System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +124
System.Web.UI.Page.DeterminePostBackMode() +83
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11070247
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11069786
System.Web.UI.Page.ProcessRequest() +91
System.Web.UI.Page.ProcessRequest(HttpContext context) +240
ASP.clan_create_2_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\0325ffa7\59f7f066\App_Web_ctkyhecl.9.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +599
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +171

Version Information: Microsoft .NET Framework Version:2.0.50727.5448; ASP.NET Version:2.0.50727.5456