Hide title doesn’t work

Hi
The hide title button in Elementor (Version 3.4.6) does not work for any pages.

this note under the button says: Not working? You can set a different selector for the title in Site Settings > Layout

but when I click on the title and use inspect I can see this: <h1 class=”nicdark_font_size_50 nicdark_font_size_40_all_iphone nicdark_line_height_40_all_iphone”>Example Page Title</h1>
and I don’t know which part should I pick.!

I also tried two plugins 1. Title remove and 2. Hide page and post title nut they did not work too.

The page I need help with: [log in to see the link]