NextGen Gallery Plus: Albums don't work with Polylang

I’m using NextGen Gallery Plus and everything worked out perfectly until I installed Polylang.

I’ve set up my pages both in Finnish and in English. Pages where I have a gallery works normally on every page (both Finnish and English “versions”) – the gallery opens up in a lightbox-view, when I click the image.
But the pages I have an album (Pro List Album), don’t. It opens up the page, but when I click on a specific gallery, it doesn’t open, it just loads up the same page again.

I’ve tried and the pages with album work when I switch off Polylang, so I know that is the problem. What I don’t get is why it affects only albums, not galleries. How could this be fixed?

I’ve created the albums on the page via that green box (sorry, can’t remember the right terms in English).

I’m so grateful if someone can help 🙂

Mari

https://wordpress.org/plugins/nextgen-gallery/