Hello,
You have already used the mentioned license for a few domains http://prntscr.com/upcsw2
At this moment it’s active at http://csportsshoes.com/ and https://casualshoes.net/
According to the ThemeForest license policy, you can use 1 license for the 1 project only https://themeforest.net/licenses/standard
So, if you want to use XStore for the new project buy a separate license.
Regards