The problem is with the kommiku plugin. Disable the plugin by renaming the kommiku folder in the wp-content/plugins directory.
A lot of other users seem to be experiencing bugs and problems with the plugin.
Also check your .htaccess file and see if any there are any weird redirects. If there are you can delete it and WordPress will generate a new one when you flush your rewrite rules by saving your permalink settings.
Make sure you are not using default permalinks according to the kommiku plugin documentations.
Here is a screenshot of the 302 Redirect in the headers.
If you view the source of the page there is a broken xml feed then the page content underneath.
Upon further inspection, it appears
that EVERY page goes to that empty
feed page (including the admin panel
link).
The blog posts and category archives are fine but to access the admin you will have to rename the wp-content/plugins/kommiku folder and possibly clean out the .htaccess file in the root directory.