Server error that kills the network thread

[gravypod]

not executing server ping for null client yet: 6009 / 10000
not executing server ping for null client yet: 7009 / 10000
not executing server ping for null client yet: 8009 / 10000
not executing server ping for null client yet: 9009 / 10000
not executing server ping for null client yet: 10009 / 10000
[SERVER] NULL CLIENT TIMED OUT: DISCONENCTING
[SIMPLANNER] random player: PlS[Lobsterbark; id(2440)(18)f(10162)]
[SQL] SECTOR QUERY TOOK 57ms types: (1,2); from (7, 10, 3) to (15, 18, 11)
connection made. starting new processor 56509, /37.59.35.201; local: 4242, /199.241.28.9, keepalive false
[SERVER] connection registered
not executing server ping for null client yet: 0 / 10000
[SERVER][PROCESSOR] client setup completed. listening for input
not executing server ping for null client yet: 1000 / 10000
not executing server ping for null client yet: 2000 / 10000
not executing server ping for null client yet: 3001 / 10000
not executing server ping for null client yet: 4001 / 10000
not executing server ping for null client yet: 5001 / 10000
not executing server ping for null client yet: 6001 / 10000
not executing server ping for null client yet: 7001 / 10000
not executing server ping for null client yet: 8001 / 10000
not executing server ping for null client yet: 9002 / 10000
not executing server ping for null client yet: 10002 / 10000
[SERVER] NULL CLIENT TIMED OUT: DISCONENCTING
connection made. starting new processor 57258, /92.239.22.26; local: 4242, /199.241.28.9, keepalive false
[SERVER] connection registered
not executing server ping for null client yet: 0 / 10000
[SERVER][PROCESSOR] client setup completed. listening for input
not executing server ping for null client yet: 1001 / 10000
not executing server ping for null client yet: 2001 / 10000
not executing server ping for null client yet: 3001 / 10000
not executing server ping for null client yet: 4001 / 10000
not executing server ping for null client yet: 5001 / 10000
not executing server ping for null client yet: 6001 / 10000
not executing server ping for null client yet: 7008 / 10000
not executing server ping for null client yet: 8008 / 10000
not executing server ping for null client yet: 9009 / 10000
not executing server ping for null client yet: 10009 / 10000
[SERVER] NULL CLIENT TIMED OUT: DISCONENCTING