To display testimonial section:
– Create new posts from Testimonials -> Add Testimonials
– Add Title, Description, Testimonials Info and set Featured Image
– To manage this section go to Appearance » Theme Options » Sections » Section 7
Note: Add more than 2 posts to display testimonial scrollbox
Please check the documentation
If you are still getting any problem, send your website URL and WordPress dmin login details at firstname.lastname@example.org so we can check and assist you quickly.