Logo theme does not load in the mobile header

Good evening, I have a problem with the theme. I can't get the image I chose as a logo to appear in the header on both desktop and mobile. In fact, even trying to insert a small version, unfortunately, from mobile it does not load it for me and shows the title of the website despite having hidden it.
I repeat the problem there is from mobile because everything is ok on the desktop.

How can I do? Thank you