Fixed server crash.
Fixed server crash.

nicodinh/cuberite,SamOatesPlugins/cuberite,marvinkopf/cuberite,QUSpilPrgm/cuberite,nichwall/cuberite,birkett/cuberite,ionux/MCServer,Frownigami1/cuberite,Schwertspize/cuberite,nevercast/cuberite,Haxi52/cuberite,zackp30/cuberite,mjssw/cuberite,thetaeo/cuberite,nichwall/cuberite,jammet/MCServer,linnemannr/MCServer,kevinr/cuberite,Howaner/MCServer,mc-server/MCServer,bendl/cuberite,jammet/MCServer,guijun/MCServer,bendl/cuberite,Altenius/cuberite,Frownigami1/cuberite,Howaner/MCServer,nounoursheureux/MCServer,tonibm19/cuberite,nicodinh/cuberite,mmdk95/cuberite,jammet/MCServer,Howaner/MCServer,Howaner/MCServer,linnemannr/MCServer,kevinr/cuberite,birkett/MCServer,Fighter19/cuberite,nichwall/cuberite,mjssw/cuberite,mmdk95/cuberite,nichwall/cuberite,HelenaKitty/EbooMC,Haxi52/cuberite,Tri125/MCServer,birkett/cuberite,zackp30/cuberite,Haxi52/cuberite,Haxi52/cuberite,mc-server/MCServer,Fighter19/cuberite,MuhammadWang/MCServer,Frownigami1/cuberite,Altenius/cuberite,guijun/MCServer,Schwertspize/cuberite,MuhammadWang/MCServer,QUSpilPrgm/cuberite,tonibm19/cuberite,Tri125/MCServer,thetaeo/cuberite,bendl/cuberite,HelenaKitty/EbooMC,Tri125/MCServer,mc-server/MCServer,electromatter/cuberite,ionux/MCServer,zackp30/cuberite,nounoursheureux/MCServer,mmdk95/cuberite,nicodinh/cuberite,nevercast/cuberite,Fighter19/cuberite,mc-server/MCServer,tonibm19/cuberite,Fighter19/cuberite,Haxi52/cuberite,linnemannr/MCServer,QUSpilPrgm/cuberite,nounoursheureux/MCServer,Tri125/MCServer,Howaner/MCServer,Tri125/MCServer,HelenaKitty/EbooMC,mmdk95/cuberite,jammet/MCServer,Haxi52/cuberite,johnsoch/cuberite,MuhammadWang/MCServer,zackp30/cuberite,birkett/cuberite,Fighter19/cuberite,Tri125/MCServer,Schwertspize/cuberite,mmdk95/cuberite,birkett/MCServer,marvinkopf/cuberite,SamOatesPlugins/cuberite,linnemannr/MCServer,johnsoch/cuberite,tonibm19/cuberite,tonibm19/cuberite,ionux/MCServer,mjssw/cuberite,nounoursheureux/MCServer,nicodinh/cuberite,ionux/MCServer,Frownigami1/cuberite,Howaner/MCServer,marvinkopf/cuberite,mjssw/cuberite,tonibm19/cuberite,birkett/MCServer,marvinkopf/cuberite,nevercast/cuberite,MuhammadWang/MCServer,Schwertspize/cuberite,Altenius/cuberite,linnemannr/MCServer,thetaeo/cuberite,guijun/MCServer,thetaeo/cuberite,ionux/MCServer,birkett/cuberite,Schwertspize/cuberite,guijun/MCServer,QUSpilPrgm/cuberite,kevinr/cuberite,nichwall/cuberite,HelenaKitty/EbooMC,Altenius/cuberite,zackp30/cuberite,thetaeo/cuberite,SamOatesPlugins/cuberite,marvinkopf/cuberite,nichwall/cuberite,QUSpilPrgm/cuberite,birkett/cuberite,johnsoch/cuberite,HelenaKitty/EbooMC,zackp30/cuberite,bendl/cuberite,birkett/MCServer,mjssw/cuberite,nevercast/cuberite,SamOatesPlugins/cuberite,guijun/MCServer,SamOatesPlugins/cuberite,thetaeo/cuberite,kevinr/cuberite,electromatter/cuberite,jammet/MCServer,kevinr/cuberite,birkett/MCServer,electromatter/cuberite,jammet/MCServer,marvinkopf/cuberite,bendl/cuberite,Altenius/cuberite,MuhammadWang/MCServer,johnsoch/cuberite,nicodinh/cuberite,nevercast/cuberite,nounoursheureux/MCServer,birkett/MCServer,kevinr/cuberite,mmdk95/cuberite,ionux/MCServer,nevercast/cuberite,mc-server/MCServer,johnsoch/cuberite,guijun/MCServer,QUSpilPrgm/cuberite,mjssw/cuberite,mc-server/MCServer,birkett/cuberite,Fighter19/cuberite,Frownigami1/cuberite,electromatter/cuberite,nicodinh/cuberite,electromatter/cuberite,electromatter/cuberite,nounoursheureux/MCServer,linnemannr/MCServer