Problem CI 4.1.6 background-image

Hi people,

I'm new here... 

I need some help, I'm not a developer but I understand several things... 

So... I have a project in localhost, working, everything ok.

My problem is in hosting... I can't I see any image identify as background-image:url()

I have this:

<li style="background-image:url(assets/images/folder/folder/image.jpg);"></li>

Ten like that... 

If I go to inspect or to view-source the image is ok... (I meant the link) the image is uploaded but nothing happens... 

I tried with class="background" and <style>...</style> but nothing happens... I need those images... 

Any option?

Thank you so much!!!