Forge mod loader

[Rvance2011]

FML Log- http://pastebin.com/gmNnKDn5

 

Please help.. it is a sky factory 2 server. closed server one day wentg to start it on the next day it appears with this crash

[Rvance2011]

and im guessing if i dont have a back up it is lost?

[loordgek]

i think it has a backup mod

[Rvance2011]

couldnt find anything like that. any idea what folder?

[LexManos]

[12:57:51] [server thread/WARN] [FML]: Forge Mod Loader detected that the backup level.dat is being used.

This may happen due to a bug or corruption, continuing can damage
your world beyond repair or lose data / progress.

It's recommended to create a world backup before continuing.

Run the command /fml confirm or or /fml cancel to proceed.
Alternatively start the server with -Dfml.queryResult=confirm or -Dfml.queryResult=cancel to preselect the answer.

It's almost like the error tells you exactly thats happening and exactly what to do...