Look now please)))) I added a message and it hangs as "invisible".

ok @volozsky, thank you we're going to check it. Please don't delete anything. 

@volozsky,

You've done wrong configuration. Please watch the video below. Please edit the "Из какой пряжи лучше это связать?" forum and change the "Администратор" access to "Полный доступ" instead of "Стандартный доступ" in Forum Permissions sections. 

Then edit the rest forums and make sure you've correctly assigned all Forum Access for each Usergroup. 

Video: https://www.screencast.com/t/VFK3a8y0

The problem in this topic also related to Forum Permissions configuration.

Good day Sofy. Thank you for the detailed answer. Very nice. I'll watch the video and try to learn all the correct settings. Thank you very much.

Thank you very much. changed the access rights and it all worked)))) Thank you Sofy.