Articulate 360 Storyline keep crashing on me; cannot save project: Help

Greetings:

1. I keep trying to preview my project and it times out:

2. I try to save my project so that I can close Storyline and restart my computer. 

 

I get the error message that the file is corrupt.

3. I close without saving and reinstall Stoyline.  Note: I am using a computer that belongs to my school district, and although all of this has happened before, it has not been to this degree. 

What can I do? I have put SO many hours into this project!

Thank you for any help.

Best,

Ashley