I found the problem already. it was in my htaccess file, here are my changes:
NOTE: Replace /shop/ with the relative web path of your catalog in the "Rewrite Base" line below:
Options +FollowSymLinks << I disabled this because else i get a Internal Server Error
RewriteEngine On
RewriteBase / << if i set here my path it wont work, just / is enough
From Ultimate SEO URLs
RewriteRule ^(.)-p-(.).html$ index.php?main_page=product_info&products_id=$2&%{QUERY_STRING} [L]
RewriteRule ^(.)-c-(.).html$ index.php?main_page=index&cPath=$2&%{QUERY_STRING} [L]
RewriteRule ^(.)-m-([0-9]+).html$ index.php?main_page=index&manufacturers_id=$2&%{QUERY_STRING} [L]
RewriteRule ^(.)-pi-([0-9]+).html$ index.php?main_page=popup_image&pID=$2&%{QUERY_STRING} [L]
RewriteRule ^(.)-pr-([0-9]+).html$ index.php?main_page=product_reviews&products_id=$2&%{QUERY_STRING} [L]
RewriteRule ^(.)-pri-([0-9]+).html$ index.php?main_page=product_reviews_info&products_id=$2&%{QUERY_STRING} [L]
For Open Operations Info Manager
RewriteRule ^(.*)-i-([0-9]+).html$ index.php?main_page=info_manager&pages_id=$2&%{QUERY_STRING} [L]
For dreamscape's News & Articles Manager
RewriteRule ^news/?$ index.php?main_page=news&%{QUERY_STRING} [L]
RewriteRule ^news/rss.xml$ index.php?main_page=news_rss&%{QUERY_STRING} [L]
RewriteRule ^news/archive/?$ index.php?main_page=news_archive&%{QUERY_STRING} [L]
RewriteRule ^news/([0-9]{4})-([0-9]{2})-([0-9]{2}).html$ index.php?main_page=news&date=$1-$2-$3&%{QUERY_STRING} [L]
RewriteRule ^news/archive/([0-9]{4})-([0-9]{2}).html$ index.php?main_page=news_archive&date=$1-$2&%{QUERY_STRING} [L]
RewriteRule ^news/(.)-a-([0-9]+)-comments.html$ index.php?main_page=news_comments&article_id=$2&%{QUERY_STRING} [L]
RewriteRule ^news/(.)-a-([0-9]+).html$ index.php?main_page=news_article&article_id=$2&%{QUERY_STRING} [L]
All other pages
Don't rewrite real files or directories
RewriteCond %{REQUEST_FILENAME} !-f [NC]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*).html$ index.php?main_page=$1&%{QUERY_STRING} [L]
Finally i got it to work after 3 days :clap::clap::clap::clap:
