Pagination only works if Items per page set to 2

Hi, I’m trying to add pagination for the posts shown on this page: https://abcwebservice.net/malesurvivor/testimonials/ and it only works if I have “Items per Page” set to 2. If I set it to any other amount it gives me an error on the frontend “No posts found”

I’ve also tried using Ajax and Regular. I’ve tried leaving the “Limit” field empty and using a greater value than the “Items per page” and it didn’t work. I’ve also tried with the Bootstrat option on and off. No errors on page.

This is an awesome plugin if I can get it to work correctly. Please help.

https://www.ads-software.com/plugins/content-views-query-and-display-post-page/