Logos and icons appear as boxes when on a mobile device.

Hello,
When you are using a mobile device, tablet, phone, and you press a link to my site from an app like facebook or instagram, my site won't show logos or icons. When you just opens a browser and go to my site, no problems. But it seems like the window, the app triggers is the problem. WP smush runs smoothly, so I dont think that is the problem.
Check out my image and see the different in the two windows.

Please help, thank you

- Nicolaj

Theme: Llorix One Lite