The most likely cause of the problem is the wrong version of EmailNotes being installed. We have found that this error occurs if you install the 64 Bit version of EmailNotes with the 32 bit version of Outlook (or vice versa).
Follow the exact steps below to load the right version of the software:
Check for the version of outlook installed here
Please click on the appropriate link below to download the software:
Please check now if this made any difference.