I need help please

Hello, first of all I apologize for my English. Je parle français. I hope you can understand me.
Some elements of my app don’t work. The first two pages are ok. But in the other pages I’ve created, some components aren’t visible. As I write to you, I notice that it’s everywhere I’ve put lists with images. But I couldn’t load an image. However, I did put some in the settings.
Can someone please help me?

Here some screenshots of what I did

Someone told me I had to fill in some fields on the list card. Thank you to him. But it didn’t work.

Someone have another idea ?

Thank you