Hello,

I saw the screenshot you attached.

Please replace your CSS with the following in the Global Custom CSS area under Theme Settings >> Custom CSS.

.wd-compare-icon>a:before {
    content: "\f24e";
    font-family: 'Font Awesome 5 Free';
    font-weight: 600;
}

.wd-header-compare .wd-tools-icon:before {
    font-size: 20px;
    content: "\f24e";
    font-family: "Font Awesome 5 Free";
    font-weight: 600;
}

Best Regards