Strange problem with latest patch

Hello,

After applying the latest patch for 3.3.0 my forum home page becomes inaccessible, however with index.php in the url it works well;

Exemples:
mywebsite.com/forum/ = error
mywebsite.com/forum/index.php = no problem

To temporarily fix the problem I uploaded vbseo.php from original 3.3.0

Originally Posted by NFSource

Exemples:
mywebsite.com/forum/ = error
mywebsite.com/forum/ = no problem

Can you be more specific?

Oops my bad, post edited.

Hello,

what is your .htaccess file content?

Code:

# Comment the following line (add '#' at the beginning)
# to disable mod_rewrite functions.
# Please note: you still need to disable the hack in
# the vBSEO control panel to stop url rewrites.
RewriteEngine On

# Some servers require the Rewritebase directive to be
# enabled (remove '#' at the beginning to activate)
# Please note: when enabled, you must include the path
# to your root vB folder (i.e. RewriteBase /forums/)
RewriteBase /forum/

RewriteCond %{HTTP_HOST} !^www\.nfsource\.net
RewriteRule (.*) http://www.nfsource.net/forum/$1 [L,R=301]

RewriteRule ^((urllist|sitemap_).*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 [L]

RewriteCond %{REQUEST_URI} !(admincp/|modcp/|cron|vbseo_sitemap)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ vbseo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !/(admincp|modcp|clientscript|cpstyles|images)/
RewriteRule ^(.+)$ vbseo.php [L,QSA]

It looks ok, could you please open a ticket with ftp access for troubleshooting?