AlliedModders - [Issue] Convert Cvar to argument

Let me start up by saying that I am a complete noob to sourcepawn, so go easy.
I have this code here:

PHP Code:


		
			
public OnPluginStart()

{

    sm_flag = CreateConVar("sm_flag", "ADMFLAG_ROOT", "Flag required to use guiveaway command");

    GetConVarString(sm_flag, zflag, sizeof(zflag));

    

    sm_giveaway_credits = CreateConVar("sm_giveaway_credits", "5000", "Number of credits given.");

    sm_minplayers = CreateConVar("sm_minplayers", "5", "Minimum players required in the server for the giveaway to happen.");

    sm_chattag = CreateConVar("sm_chattag", "[Giveaway]", "Chat Tag that appears in front of everything this plugin says.");

    RegAdminCmd("sm_giveaway", CreditArgument, CommandGiveaway, sm_flag, "Start giveaway"); //error 130: cannot coerce functions to values

    AutoExecConfig(true, "plugin.zsorteio");

    LoadTranslations("zgiveaway.phrases");

}



public Action:CreditArgument(client, args)

{

    if (args < 1)

    {

        ReplyToCommand(client, "[Giveaway] Usage: !giveaway <amount>")

        return Plugin_Handled;

    }

    char arg[7];

    GetCmdArg(1, arg, sizeof(arg));

    int creditAmount = StringToInt(arg);

    PrintToChat(client, "[Giveaway] You are giving away %i.", creditAmount);

    sm_giveaway_credits.IntValue = creditAmount;

}

The goal is to have a command called !giveaway <arg1> where arg1 is the amount of credits to be given away, im getting an error on line 31 "error 130: cannot coerce functions to values". Any ideas?