Thanks for providing the information. I have logged in and investigated the problem. I validated the X theme and I was not able to validate the theme. It turns out that there was an SSL error going on. Your server seems to block the connection to Theme.co. An error occured and this is the message:
cURL error 51: SSL: no alternative certificate subject name matches target host name 'community.theme.co'
To resolve this issue, please check this out:
You may need to manually update the theme, you can download the latest version from your dashboard (https://theme.co/apex/dashboard). Download the .zip file, unzip it and upload to your theme's folder wp-content/themes/x/. To know more how you can update the theme manually, please check this out:
If still nothing is working, please provide us access to your ftp so that we can investigate further and resolve this issue.
Please let us know how it goes.