Hi There,
Thanks for writing in! That is because of the huge amount of padding you applied on that section and its row (container).
You can add this under Custom > CSS in the Customizer, to resolve that on mobile.
@media (max-width: 767px) {
.home #x-section-9, .home #x-section-9 .x-container {
padding: 10px !important;
}
.home #x-section-9 .x-container .x-text {text-align: center !important;}
}
Hope it helps, Cheers!