Form Manager generate nonindex code for google !!

Since I change my website with a new one with form manager, I get a problem with google indexation as there is this fucking code (which disappear when I remove form manager) : X-Robots-Tag: noindex

due to this my website, the first one on google on its market is disappearing !!

And of cours no email notification ….

http://wordpress.org/extend/plugins/wordpress-form-manager/