For a couple of days now I have been receiving error emails from my OMV install about not being able to do updates. And when I try to do a check for new updates in the GUI I get this message:
E: Release file for http://www.nic.funet.fi/debian…stretch-updates/InRelease is expired (invalid since 2d 8h 41min 2s). Updates for this repository will not be applied.
I'm guessing that I need to edit my sources.list -file but as far as I know nic.funet.fi is the main and only debian mirror in Finland so what should I do to fix this? Should I select some mirror outside of my country and if so, which one is recommended?