virtualbox – Ubuntu 20.04.6 system running in Oracle VM is unresponsive

I am running Ubuntu 20.04.6 in an Oracle VM on Windows 10, and after some updates of softwar on the Ubuntu system it is totally unresponsive.

What I mean it that when I start the VM I see the normal screen of ubuntu, with some favorite applications on the lest, the time and date on top , etc:

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But there functionality – I can press a mouse button or keyboard, but the screen is like an image. I can click where I want, but nothing is happening.

I also did NOT change any settings.

How to recover this VM? Or should I reinstall a new VM? New Oracle? New Windows 10?

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