My account turnedd back in time!!

Please help me!! My game crashed, and when I started it again, my pokemon had lower lvl and some of the pokemon I catched wasn't there. It was like I turned back in time! Before the game crashed and i was kicked out, I was in lvl 8, now I'm only at 7! Before the game crashed, I caught a lvl 25 Wigglytuff with great moves. I don't know what caused the trouble. It's no fun playin' on the server any more when my pokemons are gone. My Kadabra was lvl 25, but now it is lvl 24. Same thing with my Gyarados. It was lvl 22, now it's only 21. PLEASE HELP ME!!!

 

This happened today?
Can you provide what server you where on before restart, then when you joined.
What minecraft version where you on.
Where you in a specific location?
Did you have a full PC / did you have a full party.

We are trying to fix this glitch, but it's hard to replicate. We do not know what's causing it. So we need more information on this issue.