I just downloaded it on my computer through the link, and it is the unidentified developer. In order to launch it, you need to turn off your security settings temporarily.
Try use WebGL!!!
I wonder what version of macOS you're on.
I think you somehow messed up the executable.
I managed to get it to work by
`chmod a+x Epic\ DJ.app/Contents/MacOS/Epic\ DJ`
pretty hacky solution.
