[YAPB] Photoblog doesn’t show entries and pages anymore

Hello!

From one day to another, my photoblog stopped working. I can’t remember having anything done… Everything that concerns the loading of posts or pages (all pages a visitor can access, the admin-dashboard and the post/page edit view) is messed up. The page- and post-count on the dashbord shows the correct amount of entries for each and a view into my database told me that everything is still there (every page and post including their content), but in the page-/posteditor the list of pages/posts is simply not loaded. Instead I get the normal “There are no entries to show” message. The only thing that could help solving the problem is this warning I get instead of my content:

Warning: Parameter 1 to Yapb::_filter_the_posts() expected to be a reference, value given in /users/myusername/www/web/wp-includes/plugin.php on line 166

I checked line 166 and the “_filter_the_posts()” function in my blog, but i can’t find anything strange… I checked, whether every post-alignment in the YAPB-Table reffers to an existing post, and wheter every post has deffinitely an image aligned to it, but i found nothing wrong. I’m at the end of my skills and would be very happy about every help you could give…

Thanks a lot in advance,
Jonathan