The software has been updated in 2016 and relied on QuickTime support from Apple to grab the necassary information / texture's. Since Apple has ditched support for QuickTime it means that the software wont work on newer versions of macOS. Like the Github issue explains you have to rebuilt the software against a newer version of OpenFrameWorks.
Added a bit to my original post about using the Data Array actor with textfiles, containing my controller and note values, to map my midi controller to parameters. It is a super useful actor that made quick work of mapping the controllers, and allowed for flexibility in making changes.