Get rid of a couple of elements on a single page option

As you can see, i am using posts on my website, for example this one: https://www.solarkiosk.eu/united-nations-foundation-and-hope-for-women-and-children-in-bangladesh-in-an-article-about-our-solar-powered-clinic-project-in-cox-bazaar/ I would like to disable the author to be shown and also below the post I would like to disable the breadcrumb that shows the category after the post. If you could help me with this that would be much appreciated BR Thomas