Thanks for writing in! Please deactivate Video Lock extension first and then activate Cornerstone. And also make sure that everything is up to date.
Our latest versions are:
- X theme 6.2.5
- Cornerstone 3.2.5
- Video Lock 2.0.3
This latest release contains fixes for several issues so be sure to check out the changelog (http://theme.co/changelog/).
_After doing the updates, always remember to clear all caches (if you are using WP Rocket, WP SuperCache or W3 Total Cache) when updating so that the code from the latest release is always in use. This will help you to avoid any potential errors.-
Please let us know how it goes.