Background image's doesn’t show on live site

[+ CharlesMcFly]

My website background image or color in "Customize >add custom css" doesn’t appear in the live version of my website. It appears when I view the site as while im adding CSS, but other visitors can’t see it, and I can’t see it when I browse incognito either. Same with movies/series dynamic background images. 

Edit: the same happens when i  go to Dooplay Options => Customize => Paste These CSS Codes in Custom CSS Box!

Background image or color:

Adding CSS:

Live:

 

Dooplay theme movie post, adding css:

Live:

The code that i using is: 

#dt_contenedor {
    background: linear-gradient(to right, #22C1C3, #FDBB2D);
    background-repeat: repeat;
background-attachment: fixed;
}

 

Website url: http://cxdescargas.com/

Please help  ! 

 

Editado 8 de Julio del 2020 por CharlesMcFly

[+ faive]

remove the cache as my website works well for me. with the funds.