[Multi Domains] Site Address is not visible while adding new site

We cloned our multisite. Everything is working quite well except when we go to the "Network Admin->Sites->Add New" page, here's how it shows up: https://monosnap.com/file/HWhEO72mz2JaJo76q9sTMg7REhq7Sq.
The main site URL doesn't show up here. After doing a full plugin conflict test, we found that this only happens when the "Multi Domains" plugin is active. Please advice.