When we click on any button in Plesk got the below error message:
The service is not available now.
Some Container resources are overused. Click to see the details.
Resources are exceeded inside Parallels Virtuozzo Container.
Check failcnt column in the output of command:
Log on the Virtuozzo Hardware Node where Plesk container is located and follow by steps described in the article /en/213398789
If you have only access to Plesk VPS container ask to increase the resources from your VPS provider.