Issue Can't update Plesk

[etoiledemooon]

Hello all
first want to apologize about my english
long time i didn't check my updates on my server because I setup it in auto , but I checked it today and see that no updates was made since the 15 dec 2020
and Plesk says that I can update to Plesk Obsidian 18.0.31
When I lunch it , it says :

There are no products for your operating system
( 'CentOS' 'Linux' '6.10' 'x86_64' ) available
from the selected source.

My server is on a CentOS 6.10 (Final) release
When i try to launch in command update (plesk installer install-panel-updates) it says
BUSY: Update operation was locked by another update process.
Any idea about or help ?
thanks in advance

 

[IgorG]

Update operation was locked by another update process

Unable to open the "Updates and Upgrades" page or start Plesk Installer in CLI: Update operation was locked by another update process

Applicable to: Plesk for Linux Plesk for Windows Symptoms When clicking on Updates and Upgrades in Plesk, the page prompts for a root password or does not open at all with one of the following ...

support.plesk.com

My server is on a CentOS 6.10 (Final) release

This OS version is not supported for the latest Plesk Obsidian version: Software Requirements for Plesk Obsidian
Please consider migration to the new server with modern OS and Plesk.