[NSFW] URL in main stylesheet is incorrect

Hi,

I made a new copy of my live site as my staging site.
In my staging site wpDiscuz plugin acts horribly. See https://drive.google.com/file/d/1snEH8qQQ-XNNSjFbiHpxZEgNxLokjHTY/view?usp=sharing.

It turns out that the url in the main stylesheet is not found and is incorrect.

The page is trying to load it like:
<link rel=”stylesheet” id=”wpdiscuz-frontend-css-css” href=”https://digitopress.staging.wpmudev.host/fans/style.css?ver=7.3.4&#8243; type=”text/css” media=”all”>

when actually it should be:
<link rel=”stylesheet” id=”wpdiscuz-frontend-css-css” href=”https://digitopress.staging.wpmudev.host/wp-content/plugins/wpdiscuz/themes/default/style.css&#8221; type=”text/css” media=”all”>`

I have corrected it with a mu-plugin:

<?php

function wpdiscuz_scripts() {
wp_register_style( 'wpdiscuz-frontend-css', 'https://digitopress.staging.wpmudev.host/wp-content/plugins/wpdiscuz/themes/default/style.css' );
wp_enqueue_style( 'wpdiscuz-frontend-css' );
}

add_action( 'wp_enqueue_scripts', 'wpdiscuz_scripts' );

But I think better solve it at your end.

Fyi: I have a multisite installation.