Buttons Not Showing

I installed the free version of WordPress Share Buttons but wanted to change the text, etc. so I purchased the PRO version.

Now, the buttons do not even show in my posts. They did show using the free version but now I can’t get them to show in any way.

We have a responsive site so if there needs to be any adjustments for responsive design, please advise.

This is the website I am working with: https://www.dvsanalytics.com/blog/2015/08/dvsanalytics-inc-awarded-a-2015-communications-solutions-product-of-the-year-award/

https://www.ads-software.com/plugins/portfolio-gallery/