Black Screen in virtualbox on Ubuntu

[venus]

I ran into low disk storage, so I deleted some files I had on my desktop in ubuntu. I powered off the virtual machine to take a break and when I came back, there was a black screen with a blinking underscore. I updated my virtualbox to see if that was the issue, but it did not work. I also tried to change my Graphic Controller to VBOXVGA and that did not work either. Lastly, I managed to get to GRUB and tried doing a memory test, but it always got stuck at 61%. Can anyone help me with this issue? I have attached the log file.

log file.zip

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[scottgus1]

I ran into low disk storage,

If this means you got a Virtualbox error that your host is out of disk space, (good to be clear on this sort of stuff to save time, btw) then your guest might need inside-the-guest-OS fixing. Linux guests have lost the ability to run their GUI when they think they have a larger disk than the available host space, and the guest disk fills up. Happens on real PC's too, web-search:

"linux ran out of disk space, now blank screen"

Treat the guest OS same way the people helped in that web search.

[venus]

I did try looking it up on google, but I what I read did not seem to work. Can you give me a specific link please?