[Plugin: Advanced Permalinks] Problem Feed

The Ultimate version of WordPress 3.3.2. is not fully compatible with this extraordinary plugin.
The plugin works well with permalinks but my feed page is blank.
Please solve this problem.

http://wordpress.org/extend/plugins/advanced-permalinks/