The forums module has been used very infrequently but problem free.  Now all of the sudden I am getting two errors as follows:

AssemblyVersion: 04.03.07
PortalID: 0
PortalName: Boy Scouts of America - Unit 193
UserID: 1
UserName: host
ActiveTabID: 117
ActiveTabName: Discussion Forums
RawURL: /UnitResources/DiscussionForums/tabid/117/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.unit193.org/UnitResources/DiscussionForums/tabid/117/ctl/Module/ModuleId/495/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 7a1cf5c7-b88f-4212-8176-f7c496518dbd
InnerException: Request is not available in this context
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.UI.Page.get_Request
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: Request is not available in this context ---> System.Web.HttpException: Request is not available in this context at System.Web.UI.Page.get_Request() at Solpart.WebControls.SolpartMenu.RequestHasNoAgent() at Solpart.WebControls.SolpartMenu.DownLevelBrowser() at Solpart.WebControls.SolpartMenu.OnPreRender(EventArgs e) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---
Source:
Server Name: DEDI480

AssemblyVersion: 04.03.07
PortalID: 0
PortalName: Boy Scouts of America - Unit 193
UserID: 1
UserName: host
ActiveTabID: 117
ActiveTabName: Discussion Forums
RawURL: /UnitResources/DiscussionForums/tabid/117/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.unit193.org/UnitResources/DiscussionForums/tabid/117/ctl/Module/ModuleId/495/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: b6c63cda-e731-437b-b59e-40f101ddf7e7
InnerException: The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.UI.ControlCollection.RemoveAt
StackTrace:
Message: System.Web.HttpException: The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases. at System.Web.UI.ControlCollection.RemoveAt(Int32 index) at System.Web.UI.ControlCollection.Remove(Control value) at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Control child) at DotNetNuke.Modules.Forum.Groups.AddControlsToTree()
Source:
Server Name: DEDI480

Any suggestions or ideas on how to trouibleshoot and repair????  Thanks  in advance!