Hi @RafaMM,
Thanks for reaching out!
I tried to update the X theme in my development website but I was not able to replicate this issue. I suspect what happened is, there are some corrupted files that cause the issue.
I would recommend fully deleting the X theme and Cornerstone then reinstalling. A good way to do this would be:
- Access your files using FTP or file manager then go to wp-content/themes then delete the X folder.
- After deleting the folder, you can now login to your WP dashboard
- Go to the plugin page and fully delete the Cornerstone plugin
- Go to your themeco account and download the latest X theme
- Upload the latest version of the X theme to your website and activate it
- Use the link provided by X in the dashboard to automatically install Cornerstone at the latest version.
Hope that helps and let us know how that goes.