Hello.

Boinc Linux: 7.16.16+dfsg-1
Virtualbox: 6.1.26-145957~Debian~bullseye

I am using Blinc with Linux and currently cannot get any work done.

Error message: Communication with VM Hypervisor failed.

I have already found a few topics in the forum. However none solves the problem.

Could someone solve it already?

The project will have to make it compatible with the latest VirtualBox version. My favorite fix was to go back to VirtualBox 5.2.42, but I don't think you can do that with either Ubuntu 20.04, or Windows 10 any longer. I don't know about other OS's.

You can try Universe. It is a nice project without VirtualBox.
https://universeathome.pl/universe/

If you like VBox projects, you can always do LHC/CMS though. It is working OK with VBox 6.1.26 on both Ubuntu 20.04.3 and Windows 10 for me.

Speaking as someone who has written software for over 30 years (not this software, but lots of stuff from big mainframe software to medical devices) This has all of the Hallmarks of someone using a deprecated feature and completely ignore the fact it was deprecated. Now in VB 6 it no longer exists.