All pages are redirecting to "Site Activity"

it’s all my fault – i broke the internet.

I’m actually baffled – I deleted a couple getshopped.org products, adjusted a menu item, and wrote a blog, and now all links on https://www.projecttwenty1.com link to the site activity of my buddypress with all sorts of errors: https://www.projecttwenty1.com/blog/

Ohhhh……. ??