Hello,
Our client is using Xtheme Pro.
CornerStone has been deactivated on the plugin list (We are not sure how. Either by user error or by system). When we are trying to activate the cornerstone we are getting the following error message:
Plugin could not be activated because it triggered a fatal error.
Fatal error: Cannot declare class Cornerstone_Plugin_Base, because the name is already in use in /nas/content/live/runningofbulls/wp-content/plugins/cornerstone/includes/utility/plugin-base.php on line 6
The only thing that we know is that client duplicated the site into a staging site and deactivated his theme. We fixed this issue by re validating his license key. Why we can’t activate Cornerstone?
I searched the project directory and it seems “Cornerstone_Plugin_Base” has been defined in the following files:
wp-content\plugins\cornerstone\includes\cornerstone-plugin.php:
wp-content\themes\pro\cornerstone\includes\cornerstone-plugin.php