How to add icons to navigation bar in Marketer theme (through plugin)?

Hi!

I installed ThemeIsle's menu icon plugin:

https://wordpress.org/plugins/menu-icons/

My menu looked great.

However, Thrive Architect crashed as soon as I started editing a blog post. Based on the error message, this was caused by the menu icon plugin (disabling the plugin fixed the issue).

Any alternative plugins out there that I can use, to add menu icons?

Cheers,
Timo