Couple problems

Hi
I am getting this error:
[ERROR] addons/pointshop/lua/pointshop/items/headshatsmasks/server_base.lua:15: attempt to call field ‘AddNetworkString’ (a nil value)

  1. unknown - addons/pointshop/lua/pointshop/items/headshatsmasks/server_base.lua:15
  2. include - [C]:-1
    3. LoadItems - addons/pointshop/lua/pointshop/sh_init.lua:119
    4. Initialize - addons/pointshop/lua/pointshop/sh_init.lua:55
    5. unknown - addons/pointshop/lua/autorun/pointshop.lua:

When using this addon:https://github.com/adamdburton/pointshop-extras

Also,
I am using this c menu:http://forum.facepunch.com/showthread.php?t=1310356
(I already fixed the old ttt code that dealt with credits)
I want to add a scrollbar
I have tried this SetVerticalScrollbar(true)
It does not work

Thank you for all help given facepunch!

1 last thing
How do I add custom commands like !donate and open a webpage or have people connecting or leaving in the chat. Also customize the command colors etc.
ex http://steamcommunity.com/sharedfiles/filedetails/?id=735201558
http://steamcommunity.com/sharedfiles/filedetails/?id=735201424
http://steamcommunity.com/sharedfiles/filedetails/?id=730124450\

Thanks

oh yeah and when banning someone with ulx the ban message floods the chat. How do I get rid of it