Hello,
Thanks for using our theme.
According to the ThemeForest license policy, you can use 1 license for 1 project only (dev site, production site, localhost but the same project) – https://themeforest.net/licenses/terms/regular
We can see 2 activations on 2 different sites – https://gyazo.com/5a268f73510d7776dac3f2c8b0acc445
Deactivate and delete the theme from both, then contact us and you will be able to activate XStore on a new site.
Regards