Arbortext Content Manager

I am trying to make a connection to Arbortext Content Manager from Arbortext Editor. I have modified the siteprefs.xml and the userprefs.xml to reflect my server url and name and have put them both in the adapters folder in Arbortext Editor. When Editor is started and you go to click on Object to connect a PTC server we get an error that says java.lang.NullPointerException which does not tell me anything. Can someone please give some advice or some help please?