[NeroX98]

If this is the message that you want to show

pawn Код:

SendClientMessage(playerid,COLOR_RED2,"To jest prywatny pojazd!");
                SendClientMessage(playerid,COLOR_RED2,"Aby taki mieć musisz kupić dom  /Kupdom");

Then it actually shows when player is in House Vehicle... If you wanted that, than i think this is problem

pawn Код:

if(HouseID[playerid] != x){

because i don't know what this function does...