Adobe Digital Editions Crashing on Transfer

On Mac - I installed ADE (Adobe Digital Editions) (latest version 4.0) I

also tested with all earlier versions (1.7-3.0) of ADE.

The issue is that ADE crashes when transferring .acsm file formats. I don't

get any error messages with versions 3.0 & 4.0, however, on earlier

versions of ADE i get this error (please see screenshot). The issue only

happens with Public Library E-books (From Overdrive) - I am able to transfer purchased books.

I tested on windows platform and everything works fine - I am able to transfer files without it crashing

OS: 10.9.5

IB: Chrome

Overdrive.com and mac app

Kobo Aura E-reader