I rcvd this : I’m trying to activate cornerstone in the plugin section and I get this message: Fatal error: Cannot declare class Cornerstone_Plugin_Base, because the name is already in use in /nas/content/live/pyramidtime/wp-content/plugins/cornerstone/includes/utility/plugin-base.php on line 6
I found the past thread and deleted cornerstone plugin and looked at ftp, but cornerstone folder not listed.
I tried to add cornerstone using plugin, hit install I get this: Installation failed: Installation package not available.
Can you help?
TY
