All of a sudden Virtualbox error in Ubuntu 10.10

Ubuntu 10.10 installed, downgraded from 11.04.
Virtualbox 4.1.2 r.73507.
All was well for one month with 3 snapshots taken, both 10.10 installed in 'normal' and 'virtual' machines working fine.
Then just now i get these erors which dont allow the VM to start the current shot or anything else.

I got this first:

then i removed the last snapshot and afterwards it didnt start because:

I removed all snapshots i could ,but it's the same music-VM wont start.
Anyone can help before I'm forced to reinstall the VM?

 

You mean snapshots?
Mrk

 

sorry Mrkvonic, yes,of course, I mean
snapshots
I was not in my best shape this morning.
I've edited the mistake,thanks.
Now that you replied I hope you can clarify
what kind of malfunction is that, I didnt do anything out of the ordinary,both systems are updated, the only thing I did yesterday prior to the errors notice was a Mullvad subscription which I tried later both in the 'normal' and the 'virtual machine, and all was ok,then I powered off everything last night only to find the non starting VM this morning.

 

Too bad Mrkvonic was busy, in the end I solved by installing the new 11.04 without Unity in VM and deleting the previous 10.10 VM install.
All fine now.