so I started a spigiot server and tried to bedwars it all worked well i used SBA and Screaming Bedwars to do it and downloaded hypixel map Lighthouse and all worked fine then when i tri to test it when i go to emerald it says some error code minecraft  io.netty.handler.codec.encoderexcepion:Java.lang.NullPointerException:Cannot invoke "org.bukkit.craftbukkit.libs.it.unimi.dsi.fastuntil.ints.IntList.size()"because "intlist" is null

I dont know how to fix it please help