Site title disappeared, featured posts won’t update

Hi, I really need some urgent help with my site, it is my portfolio and I am currently applying for jobs but have some major problems with it. First of all, the site title and tagline has totally disappeared and nothing I have tried has brought it back. The title is visible when viewed on a mobile, but not the tagline, and nothing is visible on a desktop.

I also have a problem with the featured posts widget – it just won’t update. Right now it is showing posts that used to be but aren’t now marked as featured. They are really out of date and I need to fix this urgently but nothing seems to work.

I should note that I am on JustWrite Child theme, I have tried to switch back to the original JustWrite but it is not working.

Is there a problem with this theme in general? Any help or thoughts would be much appreciated, I really need to get this sorted out straight away.

Thanks, Hannah

The page I need help with: [log in to see the link]