Incompatibility

Hello, I need help integrating some mods into my Minecraft server: World of Clans, Remasterz (which is a mod for Epic Fight compatibility), and Enders: Cataclysm. This mod requires Invincible mod, The problem is that I was testing that mod with Nightfall, and it gives me an error when trying to enter the world. Then, when I try to use it again for World of Clans, I get a server error because when I play locally, the mods run fine.