Feeds not working

Please can anyone help. I recently moved from wordpress.com to my own server and I am having a problem with my feeds. They come up as invalid or bad. I have little knowledge of php and the whole wp system and I do not know how to mess about with the code as people have suggested. Can someone help? As if talking to a complete beginner please or can this be resolve by the administration? I am at http://deviousdiva.com
Any help would be greatly appreciated. Thanks.