@lupet92 Thank you for the quick response and assistance.
I did exactly what you suggested but sadly it did not work.
I am still getting the blank page when trying to add icons to a menu.
Do you know if the theme/plugin authors are aware and addressing this problem?
I am using Elementor Pro as well, when I add an icon to a page using their widget it works fine but sadly I cannot add icons into their nav widget to create an icon menu.
Do you have any further suggestions to resolve the issue?