Problem Server stop and crash on restart

[Ytsuka]

i'm newbie but i think this is a chisel block, i see error message before server stop

My crash log : http://pastebin.com/qFxChrZ6

thanks for your help

i see that a the end of start :

[16:46:49] [Server thread/INFO] [FML]: Applying holder lookups
[16:46:49] [Server thread/WARN] [FML]: Unable to lookup chisel:cobblestoneWall for public static com.cricketcraft.chisel.block.BlockMarbleWall com.cricketcraft.chisel.init.ChiselBlocks.cobblestoneWall. Is there something wrong with the registry?
[16:46:49] [Server thread/INFO] [FML]: Holder lookups applied
[16:46:49] [pool-3-thread-1/INFO] [EnderIO]: ServerChannelRegister: Dimensional Trasciever datasaveto/home/games/minecraft/openmod/./FTBSAISON57/enderio/dimensionalTransceiver.json
[16:46:53] [Server thread/INFO] [STDOUT]: [com.mcjty.rftools.RFTools:serverStopped:183]: ###### RFTools.serverStopped
[16:46:53] [Server thread/INFO] [FML]: The state engine was in incorrect state SERVER_STARTING and forced into state SERVER_STOPPED. Errors may have been discarded.Tue Mar 24 16:49:58 CET 2015
Server is stopped.