Backport (7.8) - Action failed when tap to click on OK in translate document window on Mac OS X

-Open a document
-Translate the document to a language of your choice
-Add the required translations (make sure that you only enter text in these textfields and that you don't click anywhere else on the screen, otherwise you won' t get an error)
-Tap to click on OK (how to enable tap-to-click: Apple --> System Preferences --> Trackpad --> Tap to click; Doing a normal/hard mouseclick will not trigger the error)
-You will get an error saying Action Failed (stacktrace is attached)

Although the system will say the action has failed, empty folders will be created.