Kernel panic-not syncing: VFS: unable to mount root fs on unknown block(0,0) error

HELP - I’ve got it back up by luck but it needs sorting!

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Regards

I’ve moved this to the https://community.ubuntu.com/c/support-help-requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the https://community.ubuntu.com/t/finding-help/712 page.