The “Enable jQuery Migrate Helper” plugin https://wordpress.org/plugins/enable-jquery-migrate-helper/ will still work for this issue, just make sure you use the legacy jQuery Legacy 1.12.4-wp version option to make the menu fully functional on mobile. http://prntscr.com/wf66kz (go to Tools / jQuery Migrate admin page to change this setting)
An update to the pro theme is in the works and will be released in the coming weeks.
Hi,
I also installed the Jquery Migrate Helper.
It resolves some problems, but i kep getting error reports:
jQuery.event.handle is undocumented and deprecated >> themes/puresimple/js/jquery.isotope.min.js
jQuery.browser is deprecated >> hemes/puresimple/inc/metabox/js/jquery.timePicker.min.js
I think you have soe work to do on updating this theme!!!