Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
The APS Catalog has been deprecated and removed from all Plesk Obsidian versions. Applications already installed from the APS Catalog will continue working. However, Plesk will no longer provide support for APS applications.
Please be aware: with the Plesk Obsidian 18.0.78 release, the support for the ngx_pagespeed.so module will be deprecated and removed from the sw-nginx package.
Here are seeing many comments but all not giving right answer as required code of command.
Just open command and run ipconfig /flushdns.
Now just restart you device and check it again.
using this you can easily fir this error, There many command of DNS you can try that if flushdns not working...