Server crash with Champions mod only while Sponge is on server too

As the title says…
crash log: ---- Minecraft Crash Report ----WARNING: coremods are present: ShutdownPa - Pastebin.com
mod: https://www.curseforge.com/minecraft/mc-mods/champions

Not sure is it fine to post reports right here… so, tell me if i’m wrong >_>

Thanks~