I had that problem when i installed this plugin.
If the option on menu “force to home page” is not selected then thare are two reasons you still have that problem.
-First reason , problem unknown.
-Second reason, as i understand this plugin to work requires to have the translated pages.
For example if your site is ready lets say in english and you add a second language lets say italian. If you go to contact page and you press the italian lang you get redirect to home page and that is becouse YOU NEED TO CREATE the ITALIAN PAGE.