Hello,

I am hosting a DNN 4.8.1 site  and I am using Periscope IT to monitor the uptime of the site. 

I noticed that the site randomly goes down with a Server Error in "/" Application error - and when I contacted the hosting company they stated the site is not down but asleep.  In fact, they say that DNN sites take longer to wake up than normal site - and hence the error.

Regardless of whether the site is down or asleep , a visitor would see an error page.  Can this issue be resolved?

This link below will take you to the detailled report.

You can see the site was down for 2 hours in all.

I have also pasted the error a user would see if they went to the website when it was down or 'asleep':

Server Error in '/' Application.

---

Index was outside the bounds of the array.

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.IndexOutOfRangeException: Index was outside the bounds of the array.

Source Error:

[IndexOutOfRangeException: Index was outside the bounds of the array.]
   System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) +1199395
   DotNetNuke.Entities.Tabs.TabController.FillTabInfo(IDataReader dr, Boolean CheckForOpenDataReader) +2254
   DotNetNuke.Entities.Tabs.TabController.GetTab(Int32 TabId, Int32 PortalId, Boolean ignoreCache) +225
   Inventua.HrefExchanger.HttpFilter.ReplaceDNNTabID(Byte[] buffer, Int32 offset, Int32 count) +1788
   Inventua.HrefExchanger.HttpFilter.Write(Byte[] buffer, Int32 offset, Int32 count) +1425
   System.Web.HttpWriter.Filter(Boolean finalFiltering) +251
   System.Web.HttpResponse.FilterOutput() +97
   System.Web.CallFilterExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +54
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433