My website is gone?

I changed some text in my website with the editor. Didn’t make any big changes…
So I saved it and clicked on view site, and it just won’t load! All I can see is one big blank screen, and I don’t know why?

Five minutes ago it was no problem to view my website untill I changed it..
Not sure if it is relevant but I’m using the Architekt theme.

Thanks 🙂