Website crashed/replaced by WordPress Error Message after X-theme update

[samraia]

My website http://dietvisits.com was replaced by WordPress Error Message after X-theme last update.
Errors:

The website is up now because I backed it up with on older image

please advise how to fix the errors.
Thank you
Sam
Email: dietvisits@gmail.com

[tristup]

Hi Sam,

Thanks for reaching out.
I would suggest you please copy your live site to a staging server and update the X theme and the Cornerstone by following the below steps.

1. Delete the existing Cornerstone
2. Update the X theme to the latest version on automatic updates
3. After the X theme is updated, use the link in the dashboard to automatically install the Cornerstone. It will be in the latest version.

If everything goes fine in your staging please migrate the staging server to live.

If you faced the same issue in your staging server, please let us know login credentials for your staging site in a secure note to examine it further, including:

– WordPress Site URL & Login URL
– WordPress Admin username/password

To create a secure note, click the key icon underneath any of your posts.

Thanks