Update:
After 1st night and into our morning with downgraded version is still working.
So Im now running NT8 v8.0.19.1 and IB Gateway 973. This combination worked reliable in the past and lets hope still is.
Im thinking of switching the alert system (strategy shut down, data stream loss etc. )
and also the realtime order notification (entry/exit of positions) as 2nd line of defence
from sending Gmail msg to something else like telegram or even twitter.
On the other side Im pretty satisfied with Uptime robot which checks the virtual machine.