Hi,
I came by this support thread because a friend has a site built with the Delicate theme. (so, I’m not an expert)
But I just checked and your site appears fine on my iPad, and on my iPhone it’s not bad. The header image is squashed, and your menu runs onto 5 lines, but that’s hard to stop with a simple wordpress site?
Has it fixed itself, or did you do something to correct your earlier errors?