Whats wrong with this function

[ShadowTehAmaz]

function GM:OnRoundStart(ply)    
    ply:StripWeapon('weapon_zm_improvised')
    ply:Give('weapon_ttt_lightsaber')
    ply:SelectWeapon('weapon_ttt_lightsaber')
end

Error:[ERROR] addons/pointshop-master/lua/items/weapons/saber.lua:24: attempt to index global 'GM' (a nil value)
1. unknown - addons/pointshop-master/lua/items/weapons/saber.lua:24

Note: That the Top line is 24

[wauterboi]

"GM" runs before the gamemode is initialized. Change it to "GAMEMODE".

[ShadowTehAmaz]

[QUOTE=wauterboi;41819370]"GM" runs before the gamemode is initialized. Change it to "GAMEMODE".[/QUOTE]

I did and it still caused an error

[wauterboi]

It gave the exact same error?

[editline]12th August 2013[/editline]

Is this being ran serverside or clientside? It should be serverside.

[ShadowTehAmaz]

[QUOTE=wauterboi;41819390]It gave the exact same error?

[editline]12th August 2013[/editline]

Is this being ran serverside or clientside? It should be serverside.[/QUOTE]

serverside but i got it fixed it turned out i never needed it but thanks for helping though