image selected in the background body remains in the background after updating and covered by a blank page

Hello, I apologize for the translation with google translator, and I ask that what is written below be perfected and corrected by your technician and if a better solution to the problem described is possible.
after updating helix ultimate from version 2.05 to version 2.09 (and helix framework 2.07 to 2.09) the image of the site page was placed in the background and the white page appeared. (I attach the two photos before and after the update.
link images

before
https://www.amoreeterno.it/images/before_update.jpg

after
https://www.amoreeterno.it/images/after_update.jpg

I found three solutions:

THE FIRST SOLUTION:

1. log in as administrator in the backend
2. then choose the shaper_helixultimate template style
3. then in the options of the basic card template
4. under body, activate the boxed layout button and save
5. Then open the preset tab and activate custom style
6. then open the body tab and under backgroun color delete #ffffff and save (#rrggbb remains visible).

THE SECOND SOLUTION:

1. log in as administrator in the backend
2. then choose the shaper_helixultimate template style
3. then in the template options open custom code
4. Insert your code in custom css for example:
   body {
   background-image: url ("/ images / madonna520.jpg");
   background-repeat: repeat-x;
   background-size: contain;
   background-attachment: fixed;
   }
   Save the model.

THE THIRD SOLUTION: (the best)

1. create a custom.css file insert the code as the example of the previous solution
2. save custom.css in the directories:
   OURSITE \ templates \ shaper_helixultimate \ css