[BigGroter]

pawn Код:

CMD:setvip(playerid, params[])
{
  new playerb, lvl; //playerb, not playeb
  if(sscanf(params, "ui", player, lvl)) return SendClientMessage(playerid, -1, "/setvip [playerid] [level]"); // You forgot a quotation mark as well.
  Vip[playerb] = lvl;
  return 1;
}