[Misiur]

pawn Код:

if(GetPlayerCash(playerid < params[0]*10))
{
            if(sscanf(params, "i", params[0])) return SendClientMessageEx(playerid, COLOR_GRAD3, "USAGE: /buyproducts [amount]");

Wrong order, and wrong bracket

pawn Код:

if(sscanf(params, "i", params[0])) return SendClientMessageEx(playerid, COLOR_GRAD3, "USAGE: /buyproducts [amount]");
if(GetPlayerCash(playerid) < params[0]*10)
{