Please @Toufiq, it is very important that they solve the problem, as @Pavel says it is a known problem since version 2.0.5, which they provisionally solved and now it comes up again. See my post here
https://www.joomshaper.com/forum/question/11955
"Please release a quick update for multilanguage. It is a problem that we already suffered in version 2.0.5 and it was solved in 2.0.6, therefore it is a known problem. Don't make us wait two months like last time. It is a problem that seriously affects all of us who use multilanguage, which are many. Thanks"
Here the original problem in version 2.0.5 and the solution they offered us, there are corresponding screenshots.
https://www.joomshaper.com/forum/question/6957#qa-answer-42505
As @Pavel comments, just by creating a multilingual site with its main menus, you will notice that the menus corresponding to the language do not appear.
It is a serious problem, it does not allow us to work with multilingual sites