It took a while, but we are running Disaster Recovery, on a temporary Virtual Machine of a different hoster (obviously). It could be the new VPS appears slower then the performance earlier.
Plan is to evaluate the status on the monday, and possibly to return to the server after it is fixed, depending how the issue is solved.
For the posters aware: we lost some of the posts after the last offsite backup. That was last thursday early at 3am. That is the effect of a pretty impacting disaster.
Apologies for the inconvenience.

power supply failure: check


chip(s) and processor failure: check

server burnt down: unknown