Encountering a "Site Currently Unavailable" message can feel frustrating, but...

https://mill-wiki.win/index.php/Site_Currently_Unavailable_on_Mobile_but_Works_on_WiFi:_Diagnosing_the_Issue

Encountering a "Site Currently Unavailable" message can feel frustrating, but you can fix it quickly. Start by checking your site’s DNS settings to ensure they point correctly