[Blast3r]

pawn Код:

stock IsHouseOwner(playerid, h)
{
    new szName[32];
    GetPlayerName(playerid, szName, 32);
    if(!strcmp(HouseInfo[h][h_Owner], szName))
    {
        return 1;
    }
    else if(strcmp(HouseInfo[h][h_Owner], szName)) return SendClientMessage(playerid, COLOR_GREY, "{D10D0D}[ERROR]: {FFFFFF}You are not the owner of this house.");

}

Maybe that? I also removed return 0; you can put it back maybe...

EDIT: You used detter's suggestion on your command or stock? If you did it on stock, I'd suggest you use it on commands.