Autoposting

HI,
me again...ok, autoposting with FB no works. But: CMS is joomla 3.5
website-URL is: http://www.nouvidog.de
website-URL for blog is: http://www.nouvidog.de/paulas-blog, menu is: main_menu_german, language: all
now for FB-Autopostig easyblog created a menu item in the main_menu. So the link from FB has now the url: http://www.nouvidog.de/easyblog
I can`t change this. If I make changes in the menu-item for example change the alias from easyblog to something else, the link from FB doesn`t work anymore.
So, connecting via FB to my blog one gets: http://www.nouvidog.de/easyblog. Navigating via my website to my blog it is: http://www.nouvidog/paulas-blog.
How or where can I make a change, redirect or something else to get also http://www.nouvidog.de/paulas-blog from FB?

Best regards,
Yvonne