vbseo 3.3.0 problem : forum doesnt show

[mafiaen.dk]

Hi have added vbseo 3.3.0 after that I cant se forums I create , I get this msg ;

Invalid Forum specified. If you followed a valid link, please notify the administrator

And the forum url is :
mysite.com/forums/a/

I cant see the social group either

 

[Aioforum]

Upload the .htaccess file...

 

[mafiaen.dk]

it is uploaded in the /forum/ dir