Bukkit

# ####################################################### #
#               Skyoseasons Configuration                 #
#  Check http://dev.bukkit.org/bukkit-plugins/skyoseasons #
#                for more informations.                   #
# ####################################################### #
name: Winter
next: Spring
message: '&fIt is Winter, say welcome to the snow !'
title:
  enable: true
  message: '&7WINTER'
  subtitle: '&fWe''re in Winter !'
  fade-in: 10
  stay: 70
  fade-out: 20
default-biome: ICE_FLATS
replacements:
  MESA: MESA
  DESERT: DESERT
resource-pack-url: NONE
day:
  length: 4500
  message:
    enable: true
    message: '&fBrrrr... Winter days are so rude !'
night:
  length: 2700
  message:
    enable: true
    message: '&fNights are so cold in Winter...'
can-rain: true
always-rain: true
cancel-auto-snow-placing: true
snow-melt:
  enable: false
  eternal-y: 60
  max-delay: 60
months:
  number: 3
  message: '&fThe cold month of /month/ is here...'
protocollib:
  snow-placer:
    enable: true
    allow-stacks: true
    max-delay: 60
    forbidden-blocks:
    - ICE
    forbidden-biomes:
    - DESERT

OK so I found out why.

13.01 18:05:57 [Server] INFO Enabling Skyoseasons v4.1.1 13.01 18:05:57

[Server] INFO ProtocolLib hook for CB v1_9_R1 cannot be found ! 13.01 18:05:57

[Server] WARN ProtocolLib was not found (or the hook has been disabled).

Please note that this plugin may not work properly without ProtocolLib.

However, I HAVE Protocolib Installed, I went from here:

https://www.spigotmc.org/resources/protocollib.1997/

I downloaded this type: If you're running 1.8, 1.9, or 1.10, use the latest release.

I have it enabled in seasons config file, and in winter season itself, but it's not hooking?   I just don't know what "hooking" means really so I am confused atm as to why this is not working.

My server jar version: Spigot1.9 Build#49