Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread: CentOS2Alma discussion
I think sometimes it isn't a fault from Plesk at all. Have you try to find out whether it's a fault from Chrome?
I found this tutorial from Google.
https://usefulpcguide.com/16942/err_name_not_resolved/
Try it :)