Problem on gallery link

Hello.

I created galleries and albums for my website. Following a conflict with my theme, I disabled the extension for some time. And I wanted to use it again and there is no more conflict.

The problem is that when creating a new album, when inserting into the page, there is no link back to the gallery.

Here is the link of the page of my albums : https://libre-evasion.ch/galerie-photos/
On the album “trees” we can see that there is a link automatically create : https://libre-evasion.ch/galerie-photos/nggallery/quelques-arbres/Arbres
On the album “fauna” there is none : https://libre-evasion.ch/galerie-photos/nggallery/faune-de-la-montagne/faune-de-la-montagne

I tried to delete the album, the gallery, to start again, to have a gallery created by the super admin of the site, nothing to change.

Also, I wanted to add a link to the Flickr site except that this link is added to each gallery while I would like it to be only on my page https://libre-evasion.ch/galerie-photos/

In advance, thank you very much for your help.

P.S: I’m sorry about my language, I use google translation

The page I need help with: [log in to see the link]