Refreshed and lost work

Normally the app is great at saving my project on the go, but on this occasion it needed refreshing and went it come to, all my work was gone. Even about dozen other files on the side. I'm not sure how these files could be recovered, luckily I had been saving them eslewhere once finished, mostly except the last file I was working on. This could be a troublesome bug, as I've noticed the app needs refreshing every now and then.