I need help....I am using DNN 2.12 (I know historic....but that is what the client is using)....I am getting the following error message

"Either you are not currently logged in, or you do not have access to view this tab within the portal."  THE ONLY thing I change on a working portal (about to update some items) is to go to the edit portals tab, changed nothing, clicked Update (by accident) and now this!  I do know that if you go and view a particular Module Control....the drop down list for TYPE will go back to the index=0 (SKIN type)....which can screw up the control.....It does not select the one that was selected when last updated.....hopefully this was fixed in later versions.  But back to my problem....does anyone know what went wrong to give me this error.  Again this was a working DNN site.....no mods as of yet. 

Oh....also....I am a newb with DNN!  :)