How can I remove "There's nothing here" on the blog that use Contempo theme?

1. Create a post with no title and nothing in the body then publish it.

2. Goto Layout->Edit the Blog Post Gadget 

     - Change Post page link text: to a full stop (.)

     - Take out all check mark in the box

     - Click Save and Save arrangement

3. View your blog

How can I remove or disable the hamburger menu and the sidebar from the blog that use Contempo theme?

1. Go to Blogger.com > Theme > Customize

2. Choose Advanced > Add CSS
3. Add the code below into the box
.hamburger-menu {
    visibility: hidden;

}4. Click Apply to Blog