Can't Access Admincp!! Help!

[redhawk89]

All of a sudden, when I try to visit my admincp, (www.saskforum.ca/admincp) it redirects to www.saskforum.ca......

This is a random issue that appears to have JUST started.

Any advice?

this is my .htaccess file:

PHP Code:

#php_value suhosin.post.max_vars 1024
#php_value suhosin.request.max_vars 1024

# 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 /
RewriteCond %{HTTP_HOST} !^www\.saskforum\.ca
RewriteRule (.*) http://www.saskforum.ca/$1 [L,R=301]
RewriteRule ^((urllist|sitemap_).*\.(xml|txt)(\.gz)?)$ 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 is in public_html and has not changed in a very long time, as far as I know.

--------------- Added [DATE]1253058792[/DATE] at [TIME]1253058792[/TIME] ---------------

solved, admincp folder mysteriously vanished... reuploaded and better now.