[Plugin: WP Email Guard] email in form

I’ve a problem with this plugin : I’ve à form where users have to write their email address.
When data is saved in a session variable, it’s not a plain text value, it’s the code value like : MailGuard(’toto.test’,’gmail.com’)

How can I manage that and have the plain text ?
Thanks for your answers !

https://www.ads-software.com/extend/plugins/wp-email-guard/