Some of the Elementor content blocks on the page have fixed positioning and fixed widths that are too big for the page area, so it is causing issues.
It is not the theme footer that is too big, it is a large white blank area below the fixed position Elementor blocks. The theme footer is only the narrow dark band at the bottom of the page which is only 50 pixels high.
Add this CSS to Customize > Additional CSS:
.elementor,
.elementor-element {
max-width: 100% !important;
}This should help but you really need to fix the Elementor blocks that are causing the issues.