Hello Ofi,
After encountering a couple of other issues I decided to simplify my installation by dropping to an earlier backup created with a minimum of components and templates. I now have only the default Joomla and Helix templates, SP Page Builder Pro, and Akeeba Backup loaded on my site.
In the 2nd row of my site I am trying to use the background image "CCO w audience" which is in Folders>>images>>Homepage>>Homepage_Images with the parallax effect enabled. At one point I had this image properly loaded but now the image no longer appears in the page.
Could you check this please?
Thank you.