When I go to enable CoursePress Pro, I get this error:

When I go to enable CoursePress Pro, I get this error:
Plugin could not be activated because it triggered a fatal error.
Fatal error: Cannot redeclare cp_show_errors() (previously declared in /home/softwar/public_html/wp-content/themes/shopperpress/PPT/framework/ppt_core.php:533) in /home/softwar/public_html/wp-content/plugins/coursepress/includes/functions.php on line 1351

I'm using the ShopperPress theme