Those icons are from Font Awesome as it can be seen in the page source. 
You should have this tag or something that looks like this somewhere right after the opening tag:
<link data-minify="1" rel="stylesheet" id="font-awesome-css" href="https://demo2wpopal.b-cdn.net/auros/wp-content/cache/min/1/auros/wp-content/plugins/elementor/assets/lib/font-awesome/css/font-awesome.min.css?ver=1633574147" type="text/css" media="all">
Try adding it either by editing the theme file directly or through some kind of plugin.
This should fix the problem, though this shouldn’t occur at all. I’m guessing you have some kind of optimizer plugin enabled that concats and minimizes html/css/js and in the process messes with your theme.
Edit: I’m taking the info from the theme’s demo, as you didn’t link your site or given additional details, so based on your theme version and other factors it’s possible that it’s a bit different on your site.