[Donya]

pawn Код:

if (newkeys & KEY_SECONDARY_ATTACK)
{
    if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
    {
        RemovePlayerFromVehicle(playerid);
        TogglePlayerControllable(playerid, 1);
    }
}

return 1 is not exactly needed there, and why are you doing the same thing 2 times?

if u want more code in key_secondary attack, then return 1 might be needed