I just installed X pro and upon trying to activate Cornerstone get the following error. Please advise.
Fatal error: Cannot redeclare class Cornerstone_Plugin_Base in /home/content/p3pnexwpnas13_data03/28/41811228/html/wp-content/plugins/cornerstone/includes/utility/plugin-base.php on line 6
I have Pro, Pro child theme installed. Can’t activate Cornerstone plugin on either of them. On the original X install it appears that cornerstone is activated.
I read that you don’t need Cornerstone is pro. Is this true? Should I just leave it unactivated?