bug on clans

hey when i log in and go to clan list and i click clan a weird page comes up it sais well i dont no this is what it sais read this :Server Error in '/' Application.

Index and length must refer to a location within the string.
Parameter name: length
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: Index and length must refer to a location within the string.
Parameter name: length

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[ArgumentOutOfRangeException: Index and length must refer to a location within the string.
Parameter name: length]
System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) +7491067
System.String.Substring(Int32 startIndex, Int32 length) +11
PSystem.Account.AccountHelper.accountTableName(String loginId, String tableNameBase) +57
PSystem.Account.AccountHelper.G4AccountTableName(String loginId) +43
PSystem.Account.AccountHelper.GetUserID(String loginId, String& password, String& email) +73
PSystem.Account.AccountHelper.GetUserID(String loginId) +70
NewClan.clanstat_cf.Page_Load(Object sender, EventArgs e) +1775
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627




Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053