Resolved NextCloud, issue with the "system Cron service"

[MicheleB]

Hello,
on my NextCloud installation I receive this error in the "Overview -> Security & setup warnings":

Last background job execution ran 1 hour ago. Something seems wrong. Check the background job settings

In the "Scheduled Tasks" I've this hourly cron job (I think it was set up automatically when I installed the extension):


The user is "psaadm" instead on "Security & setup warnings" of NextCloud is showed the user that I set for the main ftp access for the hosting where is installed the application.
How can I fix it?

(OT) NextCloud suggest me to activate a "memory cache" (memcache), so... how can I install it with Plesk on the subdomain where is activated the application?
Thanks.