SignLock

[NiLSPACE]

Also found some errors, i don't know if this is related to the plugin:

16:45:19] LUA: Plugins/Core/onlogin.lua:10: attempt to call method 'SendMessage' (a nil value)
[16:45:19] Stack trace:
[16:45:19] [C](-1): SendMessage
[16:45:19] Plugins/Core/onlogin.lua(10): (no name)
[16:45:19] Stack trace end
[16:45:19] Error in plugin Core calling function <callback>()
[16:45:19] Player Lucifer has joined the game.
[16:45:31] [Lucifer]: yo
[16:45:40] LUA: 2 - Plugins/Core/functions.lua:144: attempt to index global 'OtherPlayer' (a nil value)

This is from the core plugin It doesn't have anything to do with this plugin.

Do you get any other errors when you place the sign?