Hello Cristina,

Thanks for reaching out to us. This issue is a bit tricky to check, as it appears to be working fine on my PC. However, the background attachment is set to fixed, which may not be supported on iPhones.

Instead, you can try using:

@media (max-width: 575px) {
    .sp-page-builder .page-content #section-id-1614323155331 {
        background-attachment: scroll !important;
    }
}

@supports (-webkit-touch-callout: none) {
    .sp-page-builder .page-content #section-id-1614323155331 {
        background-attachment: scroll !important;
    }
}

Add these code in your custom css, To add it you can follow this: https://www.joomshaper.com/documentation/helix-framework/custom-code-css-js-meta

You can choose either scroll or inherit based on your preference in background-attachment:. Let me know if this helps!

Thanks,