There is two ways to hide this warning
1. Go to your host cpanel and in php-settings turn display_errors OFF
2. Open with ftp your wp-config.php and
ini_set(‘error_reporting’, E_ALL );
How to Get Support
After you register and login to the site, you may post all plugin support questions in the Support Forum.
If you need to provide private info, please create a ticket and then reply to it using Set as private reply option.