I moved to a different host, and transferring the whole website went smoothly except for my directory didn't show anymore. I didn't receive and error messages, only an empty page. I have a lot of entries (300 per page) so I tried to lower it down to 100, and now everything appeared. I could get it up to 160, but at 161 I got the empty, errorless page.
What finally fixed the problem was allocating more memory to WordPress in the wp-config.php. This entry did the trick and I can now display 300 entries per page without a problem.
Hope this helps someone.