Bootstrap mobile menu not working, what's wrong?

Question

css

The adaptive bootstrap menu does not work, it does not hide in an accordion on mobile resolutions and does not respond to the hide/show button prntscr.com/dcicws. What could be the problem, please? bootstrap files are connected as in the example on the site. Even though I selected the entire menu from getbootstrap.com/components/#navbar and pasted it into the site, it doesn't work either. Thank you very much in advance. if anything, here is the site xn----itbbmjfkp5f3ac.xn--p1ai

Answer 1

Well, maybe you yourself asked for him

#bs-example-navbar-collapse-1 {
    display: inline-block!important;

this is what you always see