[Plugin: WP-Testimonials] Cannot display testimonials on page with shortcode?

I’ve got the [sfs-testimonials] shortcode on a page but my testimonials are not showing up there, I’m also using a hard-coded PHP shortcode call on a custom sidebar I built which using this code:

<div class="testimonials"><h2>Club16 Testimonials</h2>
 <span class="subheading">What Our Members Have to Say</span>
 <em><?php sfstst_onerandom(); ?></em></div>

Would this onerandom display in the side bar call be interfering with the testimonial displaying on the page? Help is appreciated!

https://www.ads-software.com/extend/plugins/wp-testimonials/