NOT WORKING–Smart Scroll Posts for WordPress

Hi
Dear
I really appreciate your effort for all of your contributions.
My query is regarding “Smart Scroll Posts for WordPress”.
I tried to install and set it up several times but it is not working.
I also want to use the “Change URL ON Scroll” function.
I am using OceanWP Theme on my website.
I have two websites on my wordpress, one is a simple website and the other is a woocommerce website. I guess I will have to use the same method for both types of sites.
Once again thanks for your unique work.
Looking forward to hearing from you soon
Regards