I hope you are well today and thank you for your question.
Do you want to do this on all pages or only on category page?
if you want to do this on all pages then you can achieve this by setting the value 9999 in your site option “Blog pages show at most” as shown in the attached screenshot.
Would you mind if i log in to your site and do some troubleshooting? If this is ok then could you please share me your site log in details privately by checking the option “Set as private reply” when replying to this topic?
Thank you for sharing the site credentials but i am getting the error message “ERROR: The password you entered for the username colorlib is incorrect” when i try to log in to your site.
It seems it is not working on your site due to plugin conflict so please try temporary deactivating all plugins and see whether everything works fine and then enable the plugins one by one to see which plugin is conflicting if any.