It crashed in a weired way, the server went into an infinate loop crash earlier... Did you do anything before it got laggy?
Code:
2011-04-12 04:14:54 [INFO] WorldEdit: cartman2000: jumpto
2011-04-12 04:15:05 [INFO] Connection reset
2011-04-12 04:15:05 [INFO] cartman2000 lost connection: disconnect.quitting
2011-04-12 06:13:24 [INFO] Whitelist: Player supercoke is trying to join...
2011-04-12 06:13:24 [INFO] allow!
2011-04-12 06:13:24 [INFO] supercoke logged in with entity id 342533
2011-04-12 06:13:27 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:13:35 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:13:36 [INFO] <supercoke> hi
2011-04-12 06:13:42 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:13:48 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:13:56 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:02 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:09 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:16 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:23 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:29 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:37 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:44 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:51 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
2011-04-12 06:14:58 [INFO] supercoke lost connection: disconnect.quitting
2011-04-12 06:14:58 [INFO] Connection reset
About an hour after that it went into an infinate loop.