Sam-U-el

I have been trying to play on my Minecraft Forge server, but every time I try to load the game Minecraft crashes and says "The game crashed whilst exception in server tick loop Error: java.lang.NoSuchMethodError: 'net.minecraft.nbt.CompoundTag net.minecraft.world.level.block.entity.BlockEntity.save(net.minecraft.nbt.CompoundTag)' Exit Code: -1" This only happens on this one server. Can anyone help me please and thank you.