Good afternoon. Thank you very much for your help. You are very good technical support.

Changing languages is already working well, you have fixed the problem. Can you tell me why such a problem arose, so that I could solve it myself by making each next site?

For the problem of the menu that quickly disappeared – your advice helped, I changed the design type of the menu item to “default” and everything began to work well. There was only a problem with one menu item (accessories) – for some reason the changes are not saved. I select the default design, save, but the changes are not saved. Here I added a video: https://fex.net/ru/s/ksx46da
If you can tell me what is the problem? And in general, there are no more questions, everything works fine. Thank you.