Fatal error when activating Directory plugin

I tried to activate the WordPress Directory plugin and received the following error message:

Plugin could not be activated because it triggered a fatal error.

Fatal error: Cannot redeclare ct_load_plugin_textdomain() (previously declared in /home/admin/domains/successbusinesspro.com/public_html/wp-content/plugins/custompress/cp-submodules/content-types/ct-loader.php:46) in /home/admin/domains/successbusinesspro.com/public_html/wp-content/plugins/directory/dp-submodules/content-types/ct-loader.php on line 48

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Mike