attempt to call method 'GetActiveWeapon' (a nil value)

[Fabu]

Hello everyone,

The console give an error when i run this script:

[ERROR] addons/teamsradion2/lua/radio/server/sv_init.lua:142: attempt to call method 'GetActiveWeapon' (a nil value)
 1. unknown - addons/teamsradion2/lua/radio/server/sv_init.lua:142
  2. unknown - lua/includes/modules/concommand.lua:54

Here is the code:

concommand.Add("tr_switchchannel", function( pl )
if pl:GetActiveWeapon():GetClass() == "swep_radiodevice" and pl:GetWeapon( "swep_radiodevice" ):GetDeviceStatus() then
if not pl.sc then
pl.sc = true
local chans = findChannels( pl )
if #chans > 1 then
local curChan = pl:getDarkRPVar("channelID")
curChan = table.FindNext( chans, curChan )
if curChan > table.GetLastKey(chans) then curChan = chans[1] end
pl:setDarkRPVar("channelID", curChan)
pl:setDarkRPVar("channelName", TeamRadio.radioChannels[curChan]["channelName"])
timer.Simple(0.5, function() pl.sc = false end)
else
pl:setDarkRPVar( "channelID",  tonumber(chans[1]))
timer.Simple(0.5, function() pl.sc = false end)
end
end
end
end)

[AwfulRanger]

If you're calling the command from the server console, pl will be NULL. Check if it's valid before calling GetActiveWeapon on it.