Issue Failed to update Plesk

[Sergey K.]

CentOS Linux 8.5.2111, Plesk Obsidian Version 18.0.41, last updated on Jan 26, 2022

I've got Plesk update error message and it told me to contact support :
Dear support team, what should I do after that?
According to this answer - should I do the same ?

Issue - Plesk Update failed 18.0.41

Hi, I'm getting error message when upgrading: Failed to update Plesk. To solve this problem, you can send the update log to Plesk support. View the update log from Feb 10, 2022. Copy the log to your computer before you close this message. The end of error log looks like this: ... Downloading...

talk.plesk.com

Failed to update Plesk. To solve this problem, you can send the update log to Plesk support. View the update log from Mar 3, 2022. Copy the log to your computer before you close this message.
========
Downloading file pool/PSA_18.0.41_8197/examiners/php_launcher.sh: 100% was finished.
Start downloading 1 files of unknown size and 0 delta RPMs
Download CentOS Linux 8 - AppStream 38B [total 0/unknown B 1/1 files]
dnf.exceptions.RepoError: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist

ERROR: The Yum utility failed to install the required packages.
Attention! Your software might be inoperable.
Visit https://support.plesk.com/ to search for a solution.

 

[Bitpalast]

You need to migrate to an operating system that is supported by Plesk.

 

[Sergey K.]

You need to migrate to an operating system that is supported by Plesk.

Do you know where to find step-by-step manual how to do it? I couldn't find it.

 

[Bitpalast]

GitHub - AlmaLinux/almalinux-deploy: EL to AlmaLinux migration tool.

EL to AlmaLinux migration tool. Contribute to AlmaLinux/almalinux-deploy development by creating an account on GitHub.

github.com

 

[Sergey K.]

According to this document - Software Requirements for Plesk Obsidian
Plesk Obsidian for Linux can run on the following operating systems:
CentOS 8.x 64-bit

I've got - CentOS Linux 8.5.2111

So. this is ver 8.x - what's wrong in this case to update Plesk ?

Where can I find exactly compatible list of version for the current version of Plesk Obsidian Version 18.0.41, last updated on Jan 26, 2022

Could you explain in details please?