[ArgumentNullException: Value cannot be null.
Parameter name: input]
System.Text.RegularExpressions.Regex.Split(String input) +3407558
System.Text.RegularExpressions.Regex.Split(String input, String pattern) +97
AdakCms.MyCode.Utility.ConvertFaNumbersToEn(String str) +505
AdakCms.Controllers.DatalistController.ShowGroups() +4719
lambda_method(Closure , ControllerBase , Object[] ) +90
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +229
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +80
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +466
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +971
System.Web.Mvc.Controller.ExecuteCore() +131
AdakCms.Controllers.BaseController.ExecuteCore() +1076
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +238
System.Web.Mvc.Async.AsyncResultWrapper.<.cctor>b__0(IAsyncResult asyncResult, Action action) +24
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +46
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +426
System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +172
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +158