Header issue

Hello,

I’ve been so happy with my theme for so long, but as I was trying to clean up the site, I inadvertently eliminated my custom header. I’ve tried all day to re-upload the header that worked well before, but I can’t get the size correct. I’ve tried and tried to load different sizes, but I keep getting the same cropped image. The site is Passtheham.com.

I would appreciate any help, please!