I noticed that many forums "before adding this new vBSEO code" if you try:
Code:
http://www.site.com/ar/
or
Code:
http://www.site.com/ar/link.html
(like our site)
Your get the attached error message:
Invalid Forum specified. If you followed a valid link, please notify the administrator
FYI for T2x.
This error apparently happens in:
Code:
./includes/class_dm_forum.php
as
Code:
$this->error('invalid_forum_specified');
So, it seems that somewhere vB thinks that the first /en/ or /es/ or /aaa/ is a forum.
Perhaps this is not interesting or relevant...

just FYI.