Thread:Project:Support desk/Uploads broken after I configured short URLs?

Link to my wiki: http://www.poweruser-studios.tk/w I'm using PHP 5.5.13 cgi/fcgi. After I added the configuration listed in this article: https://www.mediawiki.org/wiki/Manual:Short_URL/Apache to my .htaccess and LocalSettings.php files, I tried to upload an image. It was uploaded without any problems but when I used to include it, it showed as a red (broken) link and redirected me to: http://www.poweruser-studios.tk/w/index.php?title=Special:Upload&wpDestFile=Image_name.jpg So: The server does not rewrite the Special:Upload URLs and also my image is in .PNG format, not JPG. How to fix this? Thanks in advance, your help is highly appreciated.