Changed image not live

Hello everybody,
Hi got my website built some times ago and now I did a few changes including change an image which is on top of the page yo see in the link.
The image is embedded as background of the section. I changed the image and I could see that happened in the editing but when I lunched the website live the image is still the old one.
I use Elementor.
The theme is Billey. I have upgrated all plug ins and WordPress as well.
I can change the top image at Home page and Testimonials page but I can’t at Contact Us and About Us.
Thank you.

• This topic was modified 3 years, 9 months ago by James Huff. Reason: redundant link removed

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