Problems with NextGEN & WPML

Hi, i upgraded NextGEN to the latest release and i have 2 big problems now!

I’m using NextGEN Gallery in a multilanguage site (wpml latest version) and only shows me the photo gallery on the site by default language: in all others languages only shows me the picture but not the gallery!

Second problem: when i try to change settings of gallery through the editor i cant save! I have this error: “Invalid request” and i can’t save!

What i have to do?
I need to solve the problem with WPML because my site is translate in 4 languages!!
Plugin:
wpml: https://wpml.org/it/
NextGEN: https://www.ads-software.com/plugins/nextgen-gallery/

My site:
Gallery ok: https://gehri.com/showroom/showroom-pietra-naturale/
Gallery down: https://gehri.com/de/showroom-de/naturstein-showroom/
Gallery down: https://gehri.com/fr/showroom/showroom-pierre-naturelle/