I can't create any commands.

[Lo_Pan]

When you change the name of the function, which is called in the hook, you have to create a function with that name.

Right, so, the name of the function in the hook is the same as the actuall function, which I have done but still it fails. See code bellow

The hook is PluginInfo and the function is PluginInfo, so that should be right then, right?!

-- This will initialize the plugin to the server.

function Initialize(Plugin)
        Plugin:SetName("STONED")
        Plugin:SetVersion(1)
        
        -- Hooks
        
        cPluginManager:AddHook(cPluginManager.HOOK_EXECUTE_COMMAND, PluginInfo);        
        cPluginManager:AddHook(cPluginManager.HOOK_EXECUTE_COMMAND, RollJoint);
        cPluginManager:AddHook(cPluginManager.HOOK_EXECUTE_COMMAND, SmokeJoint);       

        PLUGIN = Plugin
         
        -- Command Bindings
        
        cPluginManager.BindCommand("/pi", "STONED.pi", PluginInfo, " - display plugin version."); -- PluginInfo binding
        cPluginManager.BindCommand("/j", "STONED.j", RollJoint, " - player is rolling a joint."); -- RollJoint binding       
        cPluginManager.BindCommand("/l", "STONED.l", SmokeJoint, " - player is smoking a joint."); -- SmokeJoint binding
        
        LOG("Initialised " ..Plugin:GetName() .. " v." .. Plugin:GetVersion())
        return true
end

function OnDisable()
        LOG(PLUGIN:GetName() .. " is shutting down!")
end

-- Commands

-- PluginInfo
function PluginInfo(Player, pi)
        Player:SendMessage("§eSTONED v1.0.0.3")
        return false
end

-- RollJoint: 
function RollJoint(Player, j)
        cRoot:Get():BroadcastChat("§b" .. Player:GetName() .. " is rolling a joint.")
        return false
end

-- SmokeJoint:
function SmokeJoint(Player, l)
        cRoot:Get():BroadcastChat("§b" .. Player:GetName() .. " is smoking a joint.")
        return false
end