iSpazz 64-bit problem?

So there is this iTunes Plugin I wanna install called iSpazz that makes your keyboard backlight flash to the music from iTunes I dragged the file that I downloaded into the iTunes plugin folder and iTunes doesn't load up because the plugin is designated for 32-bit versions of iTunes so I right click on the iTunes app and set it so that it runs on 32-bit mode. It doesn't let me open iTunes and gives me this message please help me I've been struggling with this for a while.

iTunes 12.1.0.50

MacBook Pro (Retina, 13-inch, Mid 2014) 2.6 GHz Intel Core i5 8 GB 1600 MHz DDR3 Intel Iris 1536 MB