EasySync Pro Error Specified Module not found

I am trying to sync with Lotus Notes Ver 6 and EasySync Pro version 4.2.3 and cannot. The sync dialog starts and after clicking on the next button,(After designating what the easysynce should sync with, files, notes, calendar etc) I receive an error which says “The specified Module could not be found” and the sync halts. There is just an OK button on this dialog. What module is missing? How can this problem be solved? Thanks.

Dwight