Hello. I have recently decided to play Twilight Forest mod with my brother. I've installed it just fine for Single Player (I know this because I tested it). But for some reason, it won't work on my server. It's the vanilla server Jar from Minecraft.net, and I have Forge installed. I followed about 3 or 4 tutorials, but it's still not working.
Please someone help. Why isn't the mod working?