Hi guys, I need some help... Here's what happened:

I've been writing a story in LibreOffice, and it was all going well (30 pages wrote in a little longer than two weeks) until just over 10 days ago. I tried opening my file, and I got something saying;

'General Error

General Input/Output Error'

My story won't open at all now! The file seems to be getting smaller day by day, too... So, is there any way that I can fix it?

P.S.: I've checked, and other things I've wrote DO still open correctly. It would be the one that I needed to work on most that goes horribly wrong... :S