Header images disappeared

Dear WordPress friends,

all the header images of all pages (but not in the Articles) on my website disappeared and since I didn’t change any option I’m trying to figure out what caused it. I see that in the option on each page, the image is there and should be online… But if you check the public version, the images are not there. Do you maybe know why it happens and how can I solve it? I’m running Astra 4.6.2 and WordPress 6.4.2.

Thank you in advance.

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