Error: Unknown filesystem, Grub Rescue.

**Hello, I’m running Parrot OS on my VirtualBox hypervisor, my guest OS is windows 10, i was running an upgrade when suddenly my windows 10 crashed. Now when i try to start up my Parrot OS, it tells me "error: unknown filesystem. entering rescue mode, grub rescue>. I’ve googled a bit but most solutions i can find are relating to dual booting windows and linux. Please help me. **

What version of Parrot are you running? (include version, edition, and architecture)
Version 4.4, x64

What method did you use to install Parrot? (Debian Standard / Debian GTK / parrot-experimental)
Debian Standard.

Configured to multiboot with other systems? (yes / no)

If there are any similar issues or solutions, link to them below:

If there are any error messages or relevant logs, post them below:

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