Server Error in '/' Application.

Value cannot be null.
Parameter name: value

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.ArgumentNullException: Value cannot be null.
Parameter name: value

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:


[ArgumentNullException: Value cannot be null.
Parameter name: value]
   System.Runtime.Caching.MemoryCacheEntry..ctor(String key, Object value, DateTimeOffset absExp, TimeSpan slidingExp, CacheItemPriority priority, Collection`1 dependencies, CacheEntryRemovedCallback removedCallback, MemoryCache cache) +78467
   System.Runtime.Caching.MemoryCache.AddOrGetExistingInternal(String key, Object value, CacheItemPolicy policy) +555
   System.Runtime.Caching.ObjectCache.Add(String key, Object value, DateTimeOffset absoluteExpiration, String regionName) +24
   eViettel.WebPC.Classes.CacheMng.Add(Object objectToCache, KeyCache key, String subKey, Nullable`1 endTime) +303
   eViettel.WebPC.Site.Product.Detail.LoadProductInfo() +414
   eViettel.WebPC.Site.Product.Detail.Page_Load(Object sender, EventArgs e) +153
   System.Web.UI.Control.OnLoad(EventArgs e) +109
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.6.1586.0