so a file just went blank

so i was working on my story when my laptop ran out of power. my progress should of been affected becuase some notes i took during the session had been saved but a i scene i was working on became completely blank.

i tried deleting some on the blank space and then closing the document and reopening it.

then i went to my file back up from like a few minutes ago and it said windows cannot complete extrication destination file could not be created.

what went wrong and how can i find my file?

so i was able to find where the scene was in the back up and all i got was this

try an earlier backup. Looks like you backed up after it went blank.

the back ups i have exist before i have i created the file