Abdelhadi on "[Plugin: WP-Filebase Download Manager] "Show attached files" is not working"

Hi.
Thanks for this great plugin.
Recently I'v noticed that associated files are not listed below posts. I have "Show attached files" checked, but nothing is displayed. This happens in two webistes: one is old and everything was working just fine, the second one is new, I'v just installed wp-filebase but I have the same problem.
Can you help me please?

http://wordpress.org/extend/plugins/wp-filebase/