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<h2>Staging-Only Details</h2>
<p>Message: Key cannot be null.
Parameter name: key</p>
<p>Stack Trace:    at System.Collections.Hashtable.get_Item(Object key)
   at ARS.Core.Repository.PrizeLevelRepository.GetDistinctListOfPrizeLevel(List`1 originalList) in D:\a\1\s\src\ARS.Core\Repository\PrizeLevelRepository.cs:line 162
   at ARS.Core.Repository.PrizeLevelRepository.GetListPrizeLevel(Int32 domainId, Int32 pointProgram, Nullable`1 includeSuppressed, Nullable`1 prizeLevelId, Nullable`1 isPremiumOnly) in D:\a\1\s\src\ARS.Core\Repository\PrizeLevelRepository.cs:line 129
   at ARS.Controllers.RewardController.Index(String searchString, Nullable`1 categoryFilter, Nullable`1 pointFilter, String sortOrder, Nullable`1 viewFilter, Nullable`1 pageIndex, String key) in D:\a\1\s\src\ARS.Web\Controllers\RewardController.cs:line 589
   at lambda_method(Closure , ControllerBase , Object[] )
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass24_0.<InvokeActionMethodWithFilters>b__0()
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
   at System.Web.Mvc.Controller.ExecuteCore()
   at ARS.Controllers.CoreBaseController.ExecuteCore() in D:\a\1\s\src\ARS.Web\Controllers\CoreBaseController.cs:line 568
   at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
   at System.Web.Mvc.Async.AsyncResultWrapper.<>c.<.cctor>b__15_0(IAsyncResult asyncResult, Action action)
   at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)</p>