WP Fan Machine 2 - Bug Report

[07-Jun-2016 15:44:35 UTC] PHP Warning:  Declaration of fm2Feeds::prepare_items($campaign) should be compatible with WP_List_Table::prepare_items() in /home/username/public_html/wp-content/plugins/FanMachine2/class.fm2feeds.php on line 0
[07-Jun-2016 15:44:35 UTC] PHP Warning:  Declaration of fm2Pages_Table::prepare_items($campaign) should be compatible with WP_List_Table::prepare_items() in /home/username/public_html/wp-content/plugins/FanMachine2/class.fm2pages.php on line 0
[07-Jun-2016 15:44:35 UTC] PHP Warning:  Declaration of fm2Comments_Table::prepare_items($campaign) should be compatible with WP_List_Table::prepare_items() in /home/username/public_html/wp-content/plugins/FanMachine2/class.fm2comments.php on line 0
[07-Jun-2016 15:44:35 UTC] PHP Warning:  Declaration of FM2CommentLog::prepare_items($campaign) should be compatible with WP_List_Table::prepare_items() in /home/username/public_html/wp-content/plugins/FanMachine2/class.fm2commentlog.php on line 0
[07-Jun-2016 15:44:35 UTC] PHP Warning:  Declaration of fm2Replies_Table::prepare_items($campaign) should be compatible with WP_List_Table::prepare_items() in /home/username/public_html/wp-content/plugins/FanMachine2/class.fm2replies.php on line 0
[07-Jun-2016 15:44:35 UTC] PHP Warning:  Declaration of fm2Videos::prepare_items($campaign) should be compatible with WP_List_Table::prepare_items() in /home/username/public_html/wp-content/plugins/FanMachine2/class.fm2videos.php on line 0
[07-Jun-2016 15:44:35 UTC] PHP Warning:  Declaration of FM2Log::prepare_items($campaign) should be compatible with WP_List_Table::prepare_items() in /home/username/public_html/wp-content/plugins/FanMachine2/class.fm2log.php on line 0