plugin my booktable trouble

Hello,
I’m really new to this all. I tried to search for a solution for this.I installed the plugin mybooktable the other day. I didn’t like what it did. So I tried to remove it.

However, now the page that I created on my site nahtanrhowe.com for books doesn’t work. It currently redirects to the homepage. The link shows books, however, it displays the home page.

I tried searching my settings. But I don’t know what I’m looking for. I deleted my book page and remade it. That didn’t work. Then I tried that with my home page, all that managed was to cause the book page to display a different page. I ended up remaking every page. That didn’t work.

I contacted the plugin’s supports They haven’t replied back to me. So any help would be great.

Thank you