I need help with Pixelmon server

Hey, I was using the /wiki command in my server with some friends and all the commands work other than when you try to see which biome the pokemon spawns in (/wiki Marshadow biome) it would give an error saying there was a error executing command (java.lang.NoSuchFieldError:biome) I was wondering if this may be because of biomes of plenty? if so is there a fix?