Update Theme-Help Needed

Wordpress indicated my theme is outdated. I am not a website developer or coder so I need help getting the security guard pro theme updated in wordpress. When I log into my account is mentions a “renewal fee” How do I pay that in order to get the updates?

Other issues:
– When I add pictures to the site theme, they have a black border around the image, how do I remove that?
– When wordpress was updated, it uncentered some images on webpage, how do I fix that in the theme?
– On the contact page of site, there is a blue “Contact Form” that I would like to remove because I can not figure what plug in fixes the issue of changing the color from the default blue to my business theme colors.
– In the footer area of the website, how do I make the tabs at the bottom not include every webpage title listed on the site? I only want the primary tabs to show (i.e. Home, About, Contact, Blog, etc.) Please help, I’m in immediate need of assistance to get this site up and running.