[Plugin: ShopperPress DataFeed Importer] Fatal Error

I got this error when I tried to activate the plugin:

Fatal error: Cannot redeclare init_campaigndata_tables_csv2post()(previously declared in /home/coupon/public_html/wp-content/plugins/csv-2-post-plus/wp-csv-2-post.php:27) in /home/coupon/public_html/wp-content/plugins/csv-2-post-plus/wp-csv-2-post.php on line 30