Sections missing (eg. design, settings etc) and paintbrush icon missing

Site URL: https://robejohn.com.au/

Hello, 

I'm editing a website for a client and cannot find the design or settings page. Any idea why this is? I have no idea how to go about styling the site without these options. 

Additionally the paintbrush icon is missing from the top right section. I cannot figure out why. Please help!

Thanks, 

Lydia

I am having this issue as well. I am the only admin/owner of this site so it cannot be my permissions.