Older Newer Posts

On my Hapy theme there are Older Newer Posts buttons at the bottom of the Home page, the Archives, and the Categories pages, but not on my Blog page. I tried installing an Older Newer Posts plugin but couldn’t get it to run or show up or show an error message or anything. I am just trying to get Older Newer Posts on my Blog page. My website is minimalistgranny.com

Thanks for any help you can give me.