It looks like you removed the code for all of the color styles. It should be .epik-black (for example), and it’s showing up as .-black which is why none of the colors are working.
I also see that the theme name was removed from the top of the css file as well. If you’re going to remove it, I would rename it instead of leaving it blank, just in case it causes any errors in WordPress….same goes for all of the other areas of the css and other files that use the name “epik”