EyalK1

Hi Olivier,
WPML have a great program that works with themes and plugins authors to make it compatible with WPML. They have a dedicated team for that ready to welcome any cooperation with the authors. Each project take 2-3 days.
Here is the link to the program (it called Go-Global”) :
https://wpml.org/documentation/theme-compatibility/go-global-program/

I suggest that you ask Groups author to join this program.

we at WPML happily welcome any cooperation with theme authors in order to make their theme compatible with WPML.
All they have to do is to apply here: https://wpml.org/documentation/theme-compatibility/go-global-program/

Hi Sasha, I am from WPML, I suggest that you open a support ticket in our support forum. We will try to help you during the next few days. here is the link to our forum: https://wpml.org/forums/forum/english-support/