Server refused to start, and then reset! Please help!

[FrenchLady]

Yesterday, some friends and I played on a server and all went well. We had a great time, and got pretty far into our adventure. However, today, the server failed to start. I tried for quite some time to get it running, and when I finally did, I saw the entire world had been reset. Is there anything I can do? I really loved everything we had built, and it would be a huge bummer if it all were to go to waste. Please let me know if I can access the previous world file anywhere!!! 

[FrenchLady]

It is worth mentioning as well: at no point did I "reset" the server, though I did try to "repair files".

[OMGPVP2]

Always /save-all before stopping, my server lags alot so I have to restart every hour. If you worry about your world corrupting just take a backup and paste it into a folder onto your desktop

[Nightsent]

Please post any questions you have in the Community Support section of the forums next time! Thank you!

(Moved from General to Community Support 7/25/19)