../gamemodes/OnPlayerCommandZCMD.pwn(2808) : error 046: unknown array size (variable "params")

}
COMMAND:buyclothes(playerid, params[])
{
        if(PlayerCuffed[playerid] == 1) { SendClientMessage(playerid, COLOR_WHITE, "You can not do this while cuffed."); return 1; }
        if(Died[playerid] == 1) { SendClientMessage(playerid, COLOR_WHITE, "Cannot use this command while dead."); return 1; }
        if(IsAtClothShop(playerid))
        {
            params = strtok(params, idx);
            if(!strlen(params))
            {
                SendClientMessage(playerid, COLOR_WHITE,"USAGE: /buyclothes [Skin ID]");
                return 1;
            }

            if(GetPlayerMoney(playerid) < 200)
            {
                SendClientMessage(playerid, COLOR_GREY, "   You don't have enough money ! ");
                return 1;
            }
            new level = strval(params);

            GivePlayerMoney(playerid,-200);
            if(!IsValidSkin(level))
            return SendClientMessage(playerid, COLOR_GREY, "Wrong skin ID!");
            PlayerInfo[playerid][pSkin] = level;
            SetPlayerSkin(playerid, PlayerInfo[playerid][pSkin]);
        }
        return 1;