Mobile menu problem - full width on all pages but ONE


I am using free template Mariela.
On mobile the menu is working fine unless one page.
The menu does not open in full width.

Menu on all pages looking good except ONE page.

Menu on the problem page.

I cannot figure out what is the matter - is it perhaps a bug?

Here is my site Read-Only:

The actual site:

The problem page:

Can you help me with this issue?

Problem solved.
Just created new page by copy another page on the website. Changed it’s content and deleted the page with the issue.