innernature on "[Plugin: Advanced CSV Importer With Ultimate User Friendly Features] Invalid Arguments after plugin activated"

Hi,
I just installed this plugin, and on the importer page it says:

Warning: Invalid argument supplied for foreach() in /nfs/c04/h06/mnt/183305/domains/dev.armchairtourist.com/html/wp-content/plugins/wp-ultimate-csv-importer/lib/skinnymvc/controller/base/SkinnyBaseController.php on line 304

Warning: Invalid argument supplied for foreach() in /nfs/c04/h06/mnt/183305/domains/dev.armchairtourist.com/html/wp-content/plugins/wp-ultimate-csv-importer/lib/skinnymvc/controller/base/SkinnyBaseController.php on line 304

Warning: Invalid argument supplied for foreach() in /nfs/c04/h06/mnt/183305/domains/dev.armchairtourist.com/html/wp-content/plugins/wp-ultimate-csv-importer/lib/skinnymvc/controller/base/SkinnyBaseController.php on line 304

https://wordpress.org/plugins/wp-ultimate-csv-importer/