Same Problem here… 
I get the following error after updating to Theme 10.0.1 and Cornerstone update to 7.0.1 after I want to activate it:
**Fatal error** : Cannot redeclare cs_generate_data_attributes() (previously declared in /var/www/vhosts/hosting*****.. ****up.net/*domain*/httpdocs/wp-content/plugins/tco-video-lock/functions/includes/cs/helpers.php:4) in **/var/www/vhosts/hosting*****.. ****up.net/*domain*/httpdocs/wp-content/plugins/cornerstone/includes/functions/helpers.php** on line **779**
(I have masked the domain, do not worry)