Hi @Jefrf10,
There must be a problem in your installation preventing the Navigation Collapsed element to work. I tested the use case on another installation and it is working with no problem. Here you can check the page with your phone:
http://157.230.212.75/scroll/
I checked your website and could not find what is the cause of the behavior.
Would you please kindly create a new menu from Appearance > Menus and add a few simple menu items linking to few IDs such as #row1, …
Then please add a new page with simple rows with backgrounds and add the IDs to the Rows using Customize tab:
Then, please add a new header and assign it to the page that you created. You need to add a Navigation Collapsed element and set it to the menu that you have created.
Test and see if the result works for you on mobile. That will show if the problem is happening for specific pages or is a site-wide problem.
I’d also appreciate you test if there is any kind of plugin conflict that might cause the behavior by disabling all third party plugins and checking the website.
Thank you.