Weekly Downtime - "Life Migrations"

Hello,

I'm having some issues with a VPS running Plesk on Debian 8.
It all worked fine the first weeks, but have started acting up just recently.
It seems that all services are down now and then, about once a week. All that is to do is rebooting, which solves the issue momentarily..

I've been in contact with customer support who are telling me that the issue is due to "life migrations", which unfortunately does not tell me much. And if there is some ongoing migration process that causes the issue, why would a VPS reboot solve the issue? Another good question would be - Is weekly downtime acceptable?

Anyone experiencing similar issues? Any Tips or ideas?

**UPDATE**
The customer support got back to me, telling me there was a spelling error in their responses.
They ment to say "Live migrations", which I think caused my apache to be unable to restart/startup correclty.