Craft bukkit "internal Exception" error.PLEASE Help,Im Desperate!!!

hi,im new to craft bukkit servers.I know i have already posted this but now i have my server.log with me

Ok,so when i start my server everything is fine,no errors.When i join it everything is fine.BUT,after 2 minutes after i joined it,it freezes and kicks me out.I get a message saying "internal exception:java.net.SocketTimeoutException: Read Time Out".What does this mean!!??!!??
Here is my server.log for proof

Code:

2012-09-07 23:29:28 [INFO] Starting minecraft server version 1.3.1
2012-09-07 23:29:28 [INFO] Loading properties
2012-09-07 23:29:28 [INFO] Default game type: SURVIVAL
2012-09-07 23:29:28 [INFO] Generating keypair
2012-09-07 23:29:30 [INFO] Starting Minecraft server on 10.0.0.6:25565
2012-09-07 23:29:31 [INFO] This server is running CraftBukkit version git-Bukkit-1.3.1-R2.0-b2340jnks (MC: 1.3.1) (Implementing API version 1.3.1-R2.0)
2012-09-07 23:29:31 [INFO] Preparing level "SuperFlatWorld"
2012-09-07 23:29:35 [INFO] Preparing start region for level 0 (Seed: -6673307090301972309)
2012-09-07 23:29:36 [INFO] Preparing spawn area: 69%
2012-09-07 23:29:37 [INFO] Preparing start region for level 1 (Seed: -6673307090301972309)
2012-09-07 23:29:37 [INFO] Preparing spawn area: 0%
2012-09-07 23:29:38 [INFO] Preparing spawn area: 4%
2012-09-07 23:29:39 [INFO] Preparing spawn area: 12%
2012-09-07 23:29:40 [INFO] Preparing spawn area: 20%
2012-09-07 23:29:41 [INFO] Preparing spawn area: 28%
2012-09-07 23:29:42 [INFO] Preparing spawn area: 32%
2012-09-07 23:29:43 [INFO] Preparing spawn area: 36%
2012-09-07 23:29:44 [INFO] Preparing spawn area: 40%
2012-09-07 23:29:45 [INFO] Preparing spawn area: 44%
2012-09-07 23:29:46 [INFO] Preparing spawn area: 48%
2012-09-07 23:29:47 [INFO] Preparing spawn area: 52%
2012-09-07 23:29:48 [INFO] Preparing spawn area: 60%
2012-09-07 23:29:49 [INFO] Preparing spawn area: 61%
2012-09-07 23:29:50 [INFO] Preparing spawn area: 69%
2012-09-07 23:29:52 [INFO] Preparing spawn area: 73%
2012-09-07 23:29:53 [INFO] Preparing spawn area: 81%
2012-09-07 23:29:54 [INFO] Preparing spawn area: 85%
2012-09-07 23:29:55 [INFO] Preparing spawn area: 89%
2012-09-07 23:29:56 [INFO] Preparing spawn area: 97%
2012-09-07 23:29:56 [INFO] Preparing start region for level 2 (Seed: -6673307090301972309)
2012-09-07 23:29:57 [INFO] Preparing spawn area: 12%
2012-09-07 23:29:58 [INFO] Preparing spawn area: 28%
2012-09-07 23:29:59 [INFO] Preparing spawn area: 40%
2012-09-07 23:30:00 [INFO] Preparing spawn area: 52%
2012-09-07 23:30:01 [INFO] Preparing spawn area: 60%
2012-09-07 23:30:02 [INFO] Preparing spawn area: 73%
2012-09-07 23:30:03 [INFO] Preparing spawn area: 89%
2012-09-07 23:30:04 [INFO] Done (32.653s)! For help, type "help" or "?"
2012-09-07 23:31:03 [INFO] Starting minecraft server version 1.3.1
2012-09-07 23:31:03 [INFO] Loading properties
2012-09-07 23:31:03 [INFO] Default game type: SURVIVAL
2012-09-07 23:31:03 [INFO] Generating keypair
2012-09-07 23:31:04 [INFO] Starting Minecraft server on 10.0.0.6:25565
2012-09-07 23:31:05 [INFO] This server is running CraftBukkit version git-Bukkit-1.3.1-R2.0-b2340jnks (MC: 1.3.1) (Implementing API version 1.3.1-R2.0)
2012-09-07 23:31:05 [INFO] Preparing level "SuperFlatWorld"
2012-09-07 23:31:09 [INFO] Preparing start region for level 0 (Seed: -6695858795178235176)
2012-09-07 23:31:10 [INFO] Preparing spawn area: 73%
2012-09-07 23:31:10 [INFO] Preparing start region for level 1 (Seed: -6695858795178235176)
2012-09-07 23:31:11 [INFO] Preparing spawn area: 0%
2012-09-07 23:31:12 [INFO] Preparing spawn area: 8%
2012-09-07 23:31:13 [INFO] Preparing spawn area: 16%
2012-09-07 23:31:14 [INFO] Preparing spawn area: 24%
2012-09-07 23:31:15 [INFO] Preparing spawn area: 28%
2012-09-07 23:31:16 [INFO] Preparing spawn area: 36%
2012-09-07 23:31:17 [INFO] Preparing spawn area: 44%
2012-09-07 23:31:18 [INFO] Preparing spawn area: 48%
2012-09-07 23:31:19 [INFO] Preparing spawn area: 56%
2012-09-07 23:31:20 [INFO] Preparing spawn area: 61%
2012-09-07 23:31:21 [INFO] Preparing spawn area: 69%
2012-09-07 23:31:22 [INFO] Preparing spawn area: 77%
2012-09-07 23:31:23 [INFO] Preparing spawn area: 81%
2012-09-07 23:31:24 [INFO] Preparing spawn area: 85%
2012-09-07 23:31:25 [INFO] Preparing spawn area: 93%
2012-09-07 23:31:26 [INFO] Preparing spawn area: 97%
2012-09-07 23:31:26 [INFO] Preparing start region for level 2 (Seed: -6695858795178235176)
2012-09-07 23:31:27 [INFO] Preparing spawn area: 8%
2012-09-07 23:31:28 [INFO] Preparing spawn area: 24%
2012-09-07 23:31:29 [INFO] Preparing spawn area: 40%
2012-09-07 23:31:30 [INFO] Preparing spawn area: 52%
2012-09-07 23:31:31 [INFO] Preparing spawn area: 69%
2012-09-07 23:31:32 [INFO] Preparing spawn area: 81%
2012-09-07 23:31:33 [INFO] Preparing spawn area: 97%
2012-09-07 23:31:33 [INFO] Server permissions file permissions.yml is empty, ignoring it
2012-09-07 23:31:33 [INFO] Done (27.838s)! For help, type "help" or "?"
2012-09-07 23:31:53 [INFO] EthanDaBOSS[/10.0.0.7:51679] logged in with entity id 25 at ([SuperFlatWorld] 77.5, 5.620000004768372, -165.5)
2012-09-07 23:32:01 [INFO] EthanDaBOSS: Set own game mode to CREATIVE mode
2012-09-07 23:32:09 [WARNING] Can't keep up! Did the system time change, or is the server overloaded?

Any Suggestions?

 

Please direct here: http://forums.bukkit.org/threads/troubleshooting-common-problems-with-solution.44590/#post-1324266