I get the following error when I try to add another site to the mojoportal.

The SiteMapProvider 'mojosite11' cannot be found.

I thought I did something wrong so I tried to create a new site entry and I am now getting

The SiteMapProvider 'mojosite12' cannot be found.

Is there something what I do wrong, or is there a limit on the number of sites that can handled with mojoportal?

Here the error message:

Server Error in '/' Application.
--------------------------------------------------------------------------------

The SiteMapProvider 'mojosite12' cannot be found.

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.Web.HttpException: The SiteMapProvider 'mojosite12' cannot be found.

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:

[HttpException (0x80004005): The SiteMapProvider 'mojosite12' cannot be found.]
System.Web.UI.WebControls.SiteMapDataSource.get_Provider() +1255560
System.Web.UI.WebControls.SiteMapDataSource.GetHierarchicalView(String viewPath) +12
System.Web.UI.HierarchicalDataSourceControl.System.Web.UI.IHierarchicalDataSource.GetHierarchicalView(String viewPath) +7
System.Web.UI.WebControls.HierarchicalDataBoundControl.GetData(String viewPath) +22
System.Web.UI.WebControls.Menu.DataBindItem(MenuItem item) +42
System.Web.UI.WebControls.Menu.PerformDataBinding() +117
System.Web.UI.WebControls.HierarchicalDataBoundControl.PerformSelect() +70
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70
System.Web.UI.WebControls.Menu.DataBind() +4
mojoPortal.Web.UI.SiteMenu.RenderMenu() +657
mojoPortal.Web.UI.SiteMenu.PopulateControls() +332
mojoPortal.Web.UI.SiteMenu.Page_Load(Object sender, EventArgs e) +513
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Control.LoadRecursive() +131
System.Web.UI.Control.LoadRecursive() +131
System.Web.UI.Control.LoadRecursive() +131
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436