I'm running DNN 7.4.2 (Community/Platform) and enabled advanced url management by updating the config file (per http://www.dnnsoftware.com/wiki/activating-advance...). The site loads just fine and the URLs appear as expected; however, my Event Viewer logs are blowing up. Every two seconds I get repeat entries as follows:

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AbsoluteURL:/default.aspx

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:5d53d906-d6c3-4314-a687-09d317af2da6

AssemblyVersion:7.4.2

PortalId:-1

UserId:-1

TabId:-1

RawUrl:/

Referrer:

UserAgent:

ExceptionHash:rH5/jetUOqlK7XuOYaT5jQ==

Message:Object reference not set to an instance of an object.

StackTrace:

InnerMessage:Object reference not set to an instance of an object.

InnerStackTrace:

at DotNetNuke.Entities.Portals.PortalSettingsController.ConfigureActiveTab(PortalSettings portalSettings)

at DotNetNuke.Framework.DefaultPage.InitializePage()

at DotNetNuke.Framework.DefaultPage.OnInit(EventArgs e)

at System.Web.UI.Control.InitRecursive(Control namingContainer)

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

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AND

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Analytics.AnalyticsModule:OnPageInit

ExceptionMessage:Object reference not set to an instance of an object.

Server Name: MYSERVER

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I've looked at the PortalSettings table in the database for anything amiss; I've combed through the config file to make sure all is well, and I've scoured the web to no avail. Anyone have any ideas of what to look at?

Reverting the config file change for the advanced url format stops the error logging; so, these errors are certainly connected to enabling the advance url management.