Unknown error when accessing advanced permissions

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Unknown error when accessing advanced permissions

I have a newly updated updated WSS 3.0 site from version 2.0. Sometime after the upgrade I noticed that on many sites if I attempt to open the advanced permissions I get an 'unknown error' error message.

From turning on advanced logging I see the follow error message:

Application error when access /_layouts/user.aspx, Error=Object reference not set to an instance of an object. at Microsoft.SharePoint.SPSite.get_IISAllowsAnonymous() at Microsoft.SharePoint.ApplicationPages.UserRoles.InitPage() at Microsoft.SharePoint.ApplicationPages.CBaseAclPage.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Does anyone have any ideas what could be causing this
Thanks!

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Unknown error when accessing advanced permissions

Tibia Rules
Were you able to figure out the cause of that error I am getting the same thing and it's very frustrating. Any help would be greatly appreciated.

Thanks-
Andrew
Unknown error when accessing advanced permissions

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