Touchstart menu link not working on mobile

Burger menu not clickable on mobile. Have added touchstart to my jQuery but no luck. Can emulate on mobile view on Safari and inspect via the console there, but no real idea what I’m looking at. Any issues with my code here?

Website live at www.dannyboxer.com.au

    jQuery('.showhide').on('click touchstart', function(){
    jQuery(this).toggleClass("open");
    jQuery(".mobilenav--wrap").toggleClass( "show--mobilenav" );
    jQuery('body').toggleClass("scroll");
  });