Literally none of the illuminations work. No fireflies, no glowworms, no eyes in the dark, NOTHING!! Please fix or tell me if there's a way to fix it myself.

This is not how you're going to help us chief. Please at least give us informations about your minecraft version, the version of illuminations, the modloader you use, what other mods you have installed, and whether you are on a multiplayer server or singleplayer so that we can try something.