Error message

• Warning: sizeof(): Parameter must be an array or an object that implements Countable in custom_videos_get_playlist_feed() (line 514 of /home/cityoflawrence7/public_html/sites/all/modules/custom/custom_videos/custom_videos.module).
• Warning: Invalid argument supplied for foreach() in custom_videos_videos_page() (line 283 of /home/cityoflawrence7/public_html/sites/all/modules/custom/custom_videos/custom_videos.module).