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
Plesk Support Team fixed the issue, Thanks @IgorG
The errors you were having were caused by corrupted Plesk bin files. There were several bin files with 0 KB size:
After deleting those files, I was able to successfully accessing backup interface and creating a new test domain: