menu issue on mobile view

It looks like this is the result of the way the theme handles things on the menu. If you add the following jQuery code to your site, it should work:

$('#page').on('click','.cloned h1',function(){
    $('.cloned').toggleClass('toggled');
});

You can add this in a separate JS file, or include it in the footer, or add it to an existing jQuery file (for example /js/hemingway-metro.js ), but then be aware that your changes may be overwritten if/when you update your theme.