Wrong cover page and wrong title

Hello there! I created a Website from an already existing template (the free Business template), but when I publish the Website, there is the domain name which puts the name of the site, and a small title above it. I don’t know what it is and I don’t know how to remove it. In addition, I also have a kind of small overview page that displays the free Business template. Can someone help me? Thanks!

2022-08-02