PLEASE HELP! Players lost/rewinded inventories!

Hi,
guys I cannot stress my feelings... I am begging for help, and I am possibly in the most worried position.
Here is my problem, I think it was yesterday or today we got a Plugin... And I am thinking that that was the problem, at that time I don't think we noticed it, but when we unwhitelisted or Server today (I think it all happened today, gosh I'm so worried my memories are all in a jumble) my newer players complained there inv was empty and so were there enderchests, and my older players would complain for an extremely old inv / enderchest. HOWEVER, NO BUILDINGS HAVE BEEN REWINDED, so all buildings are fully up to date and untouched, but all inv's rewinded / cleared!

I have no backup - slapping myself,
I DO, have coreprotect, but how do I rewind inventories
My plugin list: http://gyazo.com/aa26f2d6100d2cca172ba71973b92ec5
I am so scared, please help me... You have no idea...

 

You restore from a backup, To my knowledge, Nothing else you can do