The solution above does not work well to me...that make the error stop, but..
When I apply that, the right block of the gallery appear in the portal, but not in the index page or in any orther pages.
to make it work I code in the phpbb/portal/block/gallery.php
find:

include($phpbb_root_path ...

No one can help me?
I am lost here..I lost many hours searching on google and trying to find a fix be myself, but I fail.
Please, someone can help me?

hello there,
I am trying to setup this mod , but I am getting this error (this is all the error web page!)
[phpBB Debug] PHP Notice: in file /var/www/phpbb/portal/includes/portalview.php on line 97: include(/phpbb/portal/block/login_box.php): failed to open stream: No such file or directory
[phpBB ...