Shortcodes in Featured Box in corporate layout

Good evening!

I’ve come across an issue that I just can’t seem to fix. I’d like to run a random testimonial using the plugin GC Testimonials in Featured Box #3 (using the Corporate Layout for the homepage). Unfortunately, the shortcode doesn’t work, it just displays the text [random-testimonial…].

Is there a snippet of code I can change that will allow this while allowing the other Featured boxes to maintain their functionality?

Thank you for your assistance!