System Error

System.ArgumentException: An item with the same key has already been added.
   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at PupaMVC.Lib.IssueUtils.GetProductTypePricing(ProductPriceKey productPriceKey) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Lib\Utils\IssueUtils.cs:line 529
   at PupaMVC.Models.Publish.IssuePricingData.GetOriginalBindingPrice(FormatTypeEnum format, BindingTypeEnum bindingType, CoatingTypeEnum coatingType) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Models\Publish\IssuePricingData.cs:line 343
   at PupaMVC.Models.Publish.IssuePricingData..ctor(FormatTypeEnum format, BindingTypeEnum bindingType, CoatingTypeEnum coatingType, Boolean isOwnerViewing, OrderPricingForIssueDTO orderPricingForIssue) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Models\Publish\IssuePricingData.cs:line 218
   at PupaMVC.Repositories.IssueRepository.<>c__DisplayClass22_0.<GetIssuePricingDatas>b__0(OrderPricingForIssueDTO issuePricing) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Repositories\IssueRepository.cs:line 471
   at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at PupaMVC.Repositories.IssueRepository.GetIssueMiniDatasWithPricing(IEnumerable`1 issues, Categories categoriesRepository) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Repositories\IssueRepository.cs:line 480
   at PupaMVC.Repositories.SubscribeRepository.GetPublications(ShopQueryInfo queryInfo, Int32 pageSize, Int32& totalCount, Categories categories, Boolean includePricing) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Repositories\SubscribeRepository.cs:line 900
   at PupaMVC.Repositories.SubscribeRepository.<>c__DisplayClass29_0.<GetCachedPublications>b__0() in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Repositories\SubscribeRepository.cs:line 857
   at PupaMVC.Lib.PupaCache.CachedData[TResult](DictionaryKey e, String id, Func`1 dataFunc) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Lib\Caching\PupaCache.cs:line 242
   at PupaMVC.Repositories.SubscribeRepository.GetCachedPublications(ShopQueryInfo queryInfo, Int32 pageSize, Int32& totalCount, Categories categories, Boolean includePricing) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Repositories\SubscribeRepository.cs:line 853
   at PupaMVC.Repositories.SubscribeRepository.GetShopPortalViewModelRedesign(ShopViewModel directory, ShopQueryInfo queryInfo) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Repositories\SubscribeRepository.cs:line 494
   at PupaMVC.Controllers.InfoPagesController.ShopDirectory(String subPath, Nullable`1 d, Nullable`1 f, Nullable`1 p) in c:\deployWorkingDir\checkout-stag\butterfly\PupaMVC\Controllers\InfoPagesController.cs:line 141
   at lambda_method(Closure , ControllerBase , Object[] )
   at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
   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)
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APPL_MD_PATH: /LM/W3SVC/2/ROOT
APPL_PHYSICAL_PATH: c:\pupa\latest\
CERT_KEYSIZE: 256
CERT_SECRETKEYSIZE: 2048
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CERT_SERVER_SUBJECT: CN=localhost
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INSTANCE_ID: 2
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PATH_INFO: /shop/tag/melissa watts
PATH_TRANSLATED: c:\pupa\latest\shop\tag\melissa watts
REMOTE_ADDR: 172.19.1.51
REMOTE_HOST: 172.19.1.51
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SCRIPT_NAME: /shop/tag/melissa watts
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SERVER_SOFTWARE: Microsoft-IIS/10.0
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