album cannot be edited, pictures not visible when album opened

[renatab]

I had to upload a backup of my gallery today, and since then something's gone strange.
A new album I created cannot be edited, and when I go directly to the album, it does not show pictures. The ones I upload to the album can be found though in the "last additions", and there i get into the very correct album.
http://www.renatavonline.com/gallery/index.php
is the link.
The batchupload caused me trouble as well, so I wonder if I need to replace/ repair some files in the script, but I have no clue where to start.
:\'(
grazie
renata

>>> I just realized that I messed up terribly by forgetting how you have to get categories first, then define those further in "albums". After rebuilding the gallery step-by-step offline on xampp my brainfreeze fortunately freed itself
grazie ancora
r