Hello @opinsystems,
Two of your responses has been withdrawn. Does your issue were resolved already? Please let us know.
Meanwhile, To validate X properly, please do the following:
1] Please login to your account and assign the license (https://theme.co/apex/licenses). You need to assign the license to your site using this url: https://www.example.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
2] Go back to X > Validation, and insert the license code.
And if you have previously validated the site with another license, you will need to revoke and revalidate it.
1] Please go to X > Validation and revoke the validation (https://s3.amazonaws.com/community-themeco/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.example.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 > Validation, and insert your license code 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://theme.co/apex/forum/t/setup-product-validation/55
Hope this helps