[Closed] Menu for mobile devices stopped working after WPML installation

Background of the issue:
I am trying to resolve two issues after installing WPML. First, the 'hamburger' menu on mobile devices stopped working. Clicking it should display a menu dedicated to mobile devices, but nothing happens. I suspect it might be related to the theme 'mob_menu' or possibly needing Elementor Pro. Second, the client reports that pages take much longer to open, but it's unclear what 'much longer' means. I noticed it sometimes takes 20+ seconds to reload the homepage on my phone. Link to the page where the issue can be seen: hidden link. Code related to the issue:

Symptoms:
1. The 'hamburger' menu on mobile devices does not work after WPML installation. 2. Pages take much longer to open, sometimes 20+ seconds to reload the homepage on my phone.

Questions:
Why does the 'hamburger' menu on mobile devices not work after WPML installation?
What could be causing the pages to take much longer to open?