Power went out, server crashed…

We had Minecraft servers and we were just playing when the power went out. Then we lost all of the items in the inventory and ender chest, the world is 100% fine and is the same as pre-crash.

I have a lot of progress and I am just wondering if I could get the Player Data back. I have a back-up from a week ago but it has nowhere near the number of items we had, so it does not help.

Is there a way to recover Minecraft data?