The node experienced a complete lock and was rebooted.
All VPS on that node was set as suspended when the node came back online.
Investigating and fixing each VPS.
Should return shortly.
[UPDATE 2021-01-11 00:09 CET]
libvirtd locked the iptables service which caused all VPS to stay in status suspended (which is normal when a node is rebooted).
VPS are starting up, please allow 10-15 minutes before trying to login, as the node is under heavy load right now, booting up everything again.
Sunday, January 10, 2021