Problème sur ma map Minecraft

Bonjour a tous les internautes ;)

Voilà mon problème a l'heure actuelle c'est que hier quand je me suis déconnecter de mon serveur et que j'ai fermer le RUN.bat (craftbukkit 1.4.7) tout aller bien.

Se matin je lance mon serveur, je me connecte et une partie de la map que j'ai fait hier s'était effacer -_- donc il a fallut que je refasse tout et j'aimerais ne pas avoir a le refaire encore x)

donc auriez vous une solution a mon problème svp :p ?

je vous passe les logs de mon serveur au cas ou ;)

2013-02-27 10:49:10 [INFO] Starting minecraft server version 1.4.7
2013-02-27 10:49:10 [INFO] Loading properties
2013-02-27 10:49:10 [INFO] Default game type: SURVIVAL
2013-02-27 10:49:10 [INFO] Generating keypair
2013-02-27 10:49:11 [INFO] Starting Minecraft server on *:25565
2013-02-27 10:49:12 [INFO] This server is running CraftBukkit version git-Bukkit-1.4.7-R1.0-b2624jnks (MC: 1.4.7) (Implementing API version 1.4.7-R1.0)
2013-02-27 10:49:12 [WARNING] **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
2013-02-27 10:49:12 [WARNING] The server will make no attempt to authenticate usernames. Beware.
2013-02-27 10:49:12 [WARNING] While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
2013-02-27 10:49:12 [WARNING] To change this, set "online-mode" to "true" in the server.properties file.
2013-02-27 10:49:12 [INFO] Preparing level "world"
2013-02-27 10:49:13 [INFO] Preparing start region for level 0 (Seed: 63476538)
2013-02-27 10:49:14 [INFO] Preparing spawn area: 36%
2013-02-27 10:49:14 [INFO] Chunk file at -31,-27 is in the wrong location; relocating. (Expected -31, -27, got -15, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -29,-25 is in the wrong location; relocating. (Expected -29, -25, got -24, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-27 is in the wrong location; relocating. (Expected -28, -27, got -17, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-25 is in the wrong location; relocating. (Expected -28, -25, got -12, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-20 is in the wrong location; relocating. (Expected -28, -20, got -27, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-19 is in the wrong location; relocating. (Expected -28, -19, got -25, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-18 is in the wrong location; relocating. (Expected -28, -18, got -8, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-17 is in the wrong location; relocating. (Expected -28, -17, got -26, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-16 is in the wrong location; relocating. (Expected -28, -16, got -19, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-15 is in the wrong location; relocating. (Expected -28, -15, got -14, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-14 is in the wrong location; relocating. (Expected -28, -14, got -31, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-13 is in the wrong location; relocating. (Expected -28, -13, got -30, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-12 is in the wrong location; relocating. (Expected -28, -12, got -29, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-11 is in the wrong location; relocating. (Expected -28, -11, got -26, -31)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-9 is in the wrong location; relocating. (Expected -28, -9, got -25, -31)
2013-02-27 10:49:14 [INFO] Chunk file at -28,-5 is in the wrong location; relocating. (Expected -28, -5, got -9, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-22 is in the wrong location; relocating. (Expected -27, -22, got -12, -28)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-17 is in the wrong location; relocating. (Expected -27, -17, got -16, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-16 is in the wrong location; relocating. (Expected -27, -16, got -15, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-15 is in the wrong location; relocating. (Expected -27, -15, got -17, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-14 is in the wrong location; relocating. (Expected -27, -14, got -22, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-13 is in the wrong location; relocating. (Expected -27, -13, got -12, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-12 is in the wrong location; relocating. (Expected -27, -12, got -18, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-10 is in the wrong location; relocating. (Expected -27, -10, got -24, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-9 is in the wrong location; relocating. (Expected -27, -9, got -6, -30)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-8 is in the wrong location; relocating. (Expected -27, -8, got -23, -29)
2013-02-27 10:49:14 [INFO] Chunk file at -27,-6 is in the wrong location; relocating. (Expected -27, -6, got -11, -32)
2013-02-27 10:49:14 [INFO] Chunk file at -26,-26 is in the wrong location; relocating. (Expected -26, -26, got -20, -30)
2013-02-27 10:49:14 [INFO] Chunk file at -26,-25 is in the wrong location; relocating. (Expected -26, -25, got -23, -30)
2013-02-27 10:49:14 [INFO] Chunk file at -26,-23 is in the wrong location; relocating. (Expected -26, -23, got -11, -30)
2013-02-27 10:49:14 [INFO] Chunk file at -26,-21 is in the wrong location; relocating. (Expected -26, -21, got -17, -30)
2013-02-27 10:49:14 [WARNING] Wrong location for EntityItem['item.tile.rail'/10, l='world', x=-258,13, y=30,13, z=-471,13] in world 'world'!
2013-02-27 10:49:14 [WARNING] Entity is at -258.125,-471.125 (chunk -17,-30) but was stored in chunk -26,-21
2013-02-27 10:49:14 [WARNING] Wrong location for EntityItem['item.tile.rail'/11, l='world', x=-264,24, y=28,13, z=-474,28] in world 'world'!
2013-02-27 10:49:14 [WARNING] Entity is at -264.2395572970821,-474.2788659149657 (chunk -17,-30) but was stored in chunk -26,-21
2013-02-27 10:49:15 [INFO] Chunk file at -26,-18 is in the wrong location; relocating. (Expected -26, -18, got -9, -30)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-16 is in the wrong location; relocating. (Expected -26, -16, got -8, -30)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-15 is in the wrong location; relocating. (Expected -26, -15, got -12, -30)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-14 is in the wrong location; relocating. (Expected -26, -14, got -7, -30)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-12 is in the wrong location; relocating. (Expected -26, -12, got -18, -30)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-10 is in the wrong location; relocating. (Expected -26, -10, got -22, -30)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-9 is in the wrong location; relocating. (Expected -26, -9, got -5, -31)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-8 is in the wrong location; relocating. (Expected -26, -8, got -5, -32)
2013-02-27 10:49:15 [INFO] Chunk file at -26,-4 is in the wrong location; relocating. (Expected -26, -4, got -7, -31)
2013-02-27 10:49:15 [INFO] Preparing spawn area: 61%
2013-02-27 10:49:15 [INFO] Chunk file at -26,-3 is in the wrong location; relocating. (Expected -26, -3, got -24, -31)
2013-02-27 10:49:15 [INFO] Chunk file at -25,-25 is in the wrong location; relocating. (Expected -25, -25, got -22, -32)
2013-02-27 10:49:15 [INFO] Chunk file at -25,-15 is in the wrong location; relocating. (Expected -25, -15, got -13, -32)
2013-02-27 10:49:15 [INFO] Chunk file at -24,-22 is in the wrong location; relocating. (Expected -24, -22, got -20, -32)
2013-02-27 10:49:15 [INFO] Chunk file at -23,-21 is in the wrong location; relocating. (Expected -23, -21, got -14, -30)
2013-02-27 10:49:15 [INFO] Chunk file at -20,-21 is in the wrong location; relocating. (Expected -20, -21, got -7, -32)
2013-02-27 10:49:15 [INFO] Chunk file at -18,-3 is in the wrong location; relocating. (Expected -18, -3, got -19, -30)
2013-02-27 10:49:15 [WARNING] Wrong location for EntityItem['item.tile.torch'/33, l='world', x=-290,64, y=32,13, z=-476,65] in world 'world'!
2013-02-27 10:49:15 [WARNING] Entity is at -290.6395368485436,-476.6480720461779 (chunk -19,-30) but was stored in chunk -18,-3
2013-02-27 10:49:15 [INFO] Preparing start region for level 1 (Seed: 8559304345099884174)
2013-02-27 10:49:16 [INFO] Preparing spawn area: 24%
2013-02-27 10:49:17 [INFO] Preparing spawn area: 97%
2013-02-27 10:49:17 [INFO] Preparing start region for level 2 (Seed: 63476538)
2013-02-27 10:49:17 [INFO] Server permissions file permissions.yml is empty, ignoring it
2013-02-27 10:49:17 [INFO] Done (5,252s)! For help, type "help" or "?"

Voilà j'espère que vous pourrez me venir en aide ^^

je vous remercie d'avance :)