the problem come when I update the plug in. I remove it and install it again and now it seems to work fine. But now I have another problem with the navigation.
I made EN & BG navigation. When I switch to Bulgarian navigation and try to SAVE the changes it goes to 404 error page (wp-admin/undefined?lang=bgwp-admin/undefined?lang=bg) . I see that when I load the Bulgarian view of the navigation there is action=”undefined?lang=bg” in the main <form> which hold the links.
Can you give me a hint from where I can fix it?