Hello There,
To save your from trouble, using my testing license code, I have validated your site and updated your X theme to 4.4.2. Right now it is validated but as soon as I revoke the license, you will need to revalidate it. All you need to do is the following:
1] Please go to X Addons > Home and revoke the validation (https://community-archive-assets.theme.co/app/uploads/2016/04/17110514/Capture53.jpg).
2] Please login to your account and revoke the license.
3] After you have revoke the license, you need to re assign the license again to your site using this url: https://www.your-domain.com/. You have to make sure that url you just assign is the same as the one you have in your settings, Settings > General > Site Address
4] Go back to X Addons > Home again, and insert the license again.
And please review the changes that we made on how you are going to validated your X theme because we made a big change in the process. Please check it out here: https://community.theme.co/kb/product-validation/