Can't update from Vantage V 4.1.6 to 4.2.2
I just renewed my Vantage theme. I understand that I should be able to use the AppThemes Updater plugin to upgrade the theme. But when I click "Check Now" in the setting section of the plugin, it does not find any updated for Vantage theme. I even generated a new API key.
I don't mind to download and install the full theme again. I'm just afraid I will lose settings or date. What is the best way to update?