Please, provide your site admin access (insert the site credentials into the Private content block under the message area) and confirm the permission for plugins deactivation, switching to the parent theme. As soon as we complete the testing we will enable all back, however, the site would be without plugins for 15-20 min. You would better make the full backup of your site.
I am checking your home page and I do not see the Testimonials element. Please provide the page URL where you used the element. Did you use WoodMart element?