public void UpgradeMultiplier()
{
if (prefsControl.GetCurrentGameMoney() >= MULTIPLIER)
{
prefsControl.SetMinimumMultipler(prefsControl.GetMinimumMultipler() + 1);
prefsControl.SetCurrentGameMoney(prefsControl.GetCurrentGameMoney() - MULTIPLIER);
CalculateLevel();
}
else
{
error.gameObject.SetActive(true);
}
}