Server CORRUPTED? Help

This is what the console says 07.11 13:22:52 [Multicraft] Server stopped
07.11 13:22:52 [Multicraft] Received stop command
07.11 13:22:45 [Multicraft] Server stopped
07.11 13:22:45 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 13:22:45 [Multicraft] Received stop command
07.11 13:10:26 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 13:10:26 [Multicraft] Starting server!
07.11 13:10:26 [Multicraft] Loading server properties
07.11 13:10:26 [Multicraft] Received start command
07.11 13:10:05 [Multicraft] Server stopped
07.11 13:10:05 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 13:10:05 [Multicraft] Received stop command
07.11 13:03:12 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 13:03:12 [Multicraft] Starting server!
07.11 13:03:12 [Multicraft] Loading server properties
07.11 13:03:12 [Multicraft] Received start command
07.11 13:02:52 [Multicraft] Server stopped
07.11 13:02:52 [Multicraft] Received stop command
07.11 13:02:51 [Multicraft] Server stopped
07.11 13:02:51 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 13:02:51 [Multicraft] Received stop command
07.11 12:49:09 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:49:09 [Multicraft] Starting server!
07.11 12:49:09 [Multicraft] Loading server properties
07.11 12:49:09 [Multicraft] Server stopped
07.11 12:49:09 [Multicraft] Retrying server startup
07.11 12:49:04 [Multicraft] Server stopped
07.11 12:49:04 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:49:04 [Multicraft] Server shut down
07.11 12:49:04 [Server] INFO Error: Invalid or corrupt jarfile /jar/CraftBukkit-1.7.10.jar
07.11 12:49:04 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:49:04 [Multicraft] Starting server!
07.11 12:49:04 [Multicraft] Loading server properties
07.11 12:49:04 [Multicraft] Received start command
07.11 12:49:02 [Multicraft] Server stopped
07.11 12:49:02 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:49:02 [Multicraft] Server shut down
07.11 12:49:02 [Server] INFO Error: Invalid or corrupt jarfile /jar/CraftBukkit-1.7.10.jar
07.11 12:49:02 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:49:02 [Multicraft] Starting server!
07.11 12:49:02 [Multicraft] Loading server properties
07.11 12:49:02 [Multicraft] Received start command
07.11 12:48:19 [Multicraft] Server stopped
07.11 12:48:19 [Multicraft] Failed to adapt server configuration
07.11 12:48:19 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:48:19 [Multicraft] Starting server!
07.11 12:48:19 [Multicraft] Loading server properties
07.11 12:48:18 [Multicraft] Server stopped
07.11 12:48:18 [Multicraft] Retrying server startup
07.11 12:48:18 [Multicraft] Loading server properties
07.11 12:48:13 [Multicraft] Server stopped
07.11 12:48:13 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:48:13 [Multicraft] Server shut down
07.11 12:48:13 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:48:13 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:48:13 [Multicraft] Starting server!
07.11 12:48:13 [Multicraft] Loading server properties
07.11 12:48:13 [Multicraft] Server stopped
07.11 12:48:13 [Multicraft] Retrying server startup
07.11 12:48:08 [Multicraft] Server stopped
07.11 12:48:08 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:48:08 [Multicraft] Server shut down
07.11 12:48:08 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:48:08 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:48:08 [Multicraft] Starting server!
07.11 12:48:08 [Multicraft] Loading server properties
07.11 12:48:08 [Multicraft] Server stopped
07.11 12:48:08 [Multicraft] Retrying server startup
07.11 12:48:03 [Multicraft] Server stopped
07.11 12:48:03 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:48:03 [Multicraft] Server shut down
07.11 12:48:03 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:48:03 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:48:03 [Multicraft] Starting server!
07.11 12:48:03 [Multicraft] Loading server properties
07.11 12:48:03 [Multicraft] Server stopped
07.11 12:48:03 [Multicraft] Retrying server startup
07.11 12:47:58 [Multicraft] Server stopped
07.11 12:47:58 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:58 [Multicraft] Server shut down
07.11 12:47:58 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:58 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:58 [Multicraft] Starting server!
07.11 12:47:58 [Multicraft] Loading server properties
07.11 12:47:58 [Multicraft] Server stopped
07.11 12:47:58 [Multicraft] Retrying server startup
07.11 12:47:53 [Multicraft] Server stopped
07.11 12:47:53 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:53 [Multicraft] Server shut down
07.11 12:47:53 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:53 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:53 [Multicraft] Starting server!
07.11 12:47:53 [Multicraft] Loading server properties
07.11 12:47:53 [Multicraft] Server stopped
07.11 12:47:53 [Multicraft] Retrying server startup
07.11 12:47:48 [Multicraft] Server stopped
07.11 12:47:48 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:48 [Multicraft] Server shut down
07.11 12:47:48 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:48 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:48 [Multicraft] Starting server!
07.11 12:47:48 [Multicraft] Loading server properties
07.11 12:47:47 [Multicraft] Server stopped
07.11 12:47:47 [Multicraft] Retrying server startup
07.11 12:47:42 [Multicraft] Server stopped
07.11 12:47:42 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:42 [Multicraft] Server shut down
07.11 12:47:42 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:42 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:42 [Multicraft] Starting server!
07.11 12:47:42 [Multicraft] Loading server properties
07.11 12:47:42 [Multicraft] Server stopped
07.11 12:47:42 [Multicraft] Retrying server startup
07.11 12:47:37 [Multicraft] Server stopped
07.11 12:47:37 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:37 [Multicraft] Server shut down
07.11 12:47:37 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:37 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:37 [Multicraft] Starting server!
07.11 12:47:37 [Multicraft] Loading server properties
07.11 12:47:37 [Multicraft] Server stopped
07.11 12:47:37 [Multicraft] Retrying server startup
07.11 12:47:32 [Multicraft] Server stopped
07.11 12:47:32 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:32 [Multicraft] Server shut down
07.11 12:47:32 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:32 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:32 [Multicraft] Starting server!
07.11 12:47:32 [Multicraft] Loading server properties
07.11 12:47:32 [Multicraft] Server stopped
07.11 12:47:32 [Multicraft] Retrying server startup
07.11 12:47:27 [Multicraft] Server stopped
07.11 12:47:27 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:27 [Multicraft] Server shut down
07.11 12:47:27 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:27 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:27 [Multicraft] Starting server!
07.11 12:47:27 [Multicraft] Loading server properties
07.11 12:47:27 [Multicraft] Server stopped
07.11 12:47:27 [Multicraft] Retrying server startup
07.11 12:47:22 [Multicraft] Server stopped
07.11 12:47:22 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:22 [Multicraft] Server shut down
07.11 12:47:22 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:22 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:22 [Multicraft] Starting server!
07.11 12:47:22 [Multicraft] Loading server properties
07.11 12:47:21 [Multicraft] Server stopped
07.11 12:47:21 [Multicraft] Retrying server startup
07.11 12:47:16 [Multicraft] Server stopped
07.11 12:47:16 [Multicraft] Looks like a crash, check the server console. Return value: 1
07.11 12:47:16 [Multicraft] Server shut down
07.11 12:47:16 [Server] INFO Error: Invalid or corrupt jarfile /jar/Spigot-1.7.9.jar
07.11 12:47:16 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 12:47:16 [Multicraft] Starting server!
07.11 12:47:16 [Multicraft] Loading server properties
07.11 12:47:16 [Multicraft] Server stopped
07.11 12:47:16 [Multicraft] Received restart command
07.11 12:47:09 [Multicraft] Loading server properties
07.11 12:43:47 [Multicraft] Server stopped
07.11 12:43:47 [Multicraft] Failed to adapt server configuration
07.11 12:43:47 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:43:47 [Multicraft] Starting server!
07.11 12:43:47 [Multicraft] Loading server properties
07.11 12:43:47 [Multicraft] Received start command
07.11 12:43:47 [Multicraft] Server stopped
07.11 12:43:47 [Multicraft] Failed to adapt server configuration
07.11 12:43:47 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:43:47 [Multicraft] Starting server!
07.11 12:43:47 [Multicraft] Loading server properties
07.11 12:43:47 [Multicraft] Received start command
07.11 12:43:47 [Multicraft] Server stopped
07.11 12:43:47 [Multicraft] Failed to adapt server configuration
07.11 12:43:46 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:43:46 [Multicraft] Starting server!
07.11 12:43:46 [Multicraft] Loading server properties
07.11 12:43:46 [Multicraft] Received start command
07.11 12:43:39 [Multicraft] Server stopped
07.11 12:43:39 [Multicraft] Failed to adapt server configuration
07.11 12:43:39 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:43:39 [Multicraft] Starting server!
07.11 12:43:39 [Multicraft] Loading server properties
07.11 12:43:39 [Multicraft] Received start command
07.11 12:39:24 [Multicraft] Loading server properties
07.11 12:30:26 [Multicraft] Server stopped
07.11 12:30:26 [Multicraft] Failed to adapt server configuration
07.11 12:30:26 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 12:30:26 [Multicraft] Starting server!
07.11 12:30:26 [Multicraft] Loading server properties
07.11 12:30:25 [Multicraft] Received start command
07.11 11:54:34 [Multicraft] Server stopped
07.11 11:54:34 [Multicraft] Failed to adapt server configuration
07.11 11:54:34 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 11:54:34 [Multicraft] Starting server!
07.11 11:54:34 [Multicraft] Loading server properties
07.11 11:54:34 [Multicraft] Server stopped
07.11 11:54:34 [Multicraft] Received restart command
07.11 11:54:31 [Multicraft] Loading server properties
07.11 11:54:06 [Multicraft] Server stopped
07.11 11:54:06 [Multicraft] Failed to adapt server configuration
07.11 11:54:06 [Multicraft] Loaded config for "CraftBukkit-1.7.9-Rec"
07.11 11:54:06 [Multicraft] Starting server!
07.11 11:54:06 [Multicraft] Loading server properties
07.11 11:54:06 [Multicraft] Received start command
07.11 11:54:00 [Multicraft] Server stopped
07.11 11:54:00 [Multicraft] Failed to adapt server configuration
07.11 11:54:00 [Multicraft] Loaded config for "CraftBukkit-1.7.9-Rec"
07.11 11:54:00 [Multicraft] Starting server!
07.11 11:54:00 [Multicraft] Loading server properties
07.11 11:53:59 [Multicraft] Server stopped
07.11 11:53:59 [Multicraft] Received restart command
07.11 11:53:56 [Multicraft] Loading server properties
07.11 11:52:08 [Multicraft] Server stopped
07.11 11:52:08 [Multicraft] Failed to adapt server configuration
07.11 11:52:08 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 11:52:08 [Multicraft] Starting server!
07.11 11:52:08 [Multicraft] Loading server properties
07.11 11:52:08 [Multicraft] Received start command
07.11 11:51:48 [Multicraft] Server stopped
07.11 11:51:48 [Multicraft] Failed to adapt server configuration
07.11 11:51:48 [Multicraft] Loaded config for "Spigot-1.7.9-Rec"
07.11 11:51:48 [Multicraft] Starting server!
07.11 11:51:48 [Multicraft] Loading server properties
07.11 11:51:48 [Multicraft] Server stopped
07.11 11:51:48 [Multicraft] Received restart command
07.11 11:51:06 [Multicraft] Loading server properties
07.11 11:51:05 [Multicraft] Loading server properties
07.11 11:51:02 [Multicraft] Server stopped
07.11 11:51:02 [Multicraft] Received stop command
07.11 11:50:52 [Multicraft] Loading server properties
07.11 10:39:30 [Multicraft] Loaded config for "CraftBukkit-1.7.10-Latest-Rec"
07.11 10:39:30 [Multicraft] Starting server!
07.11 10:39:30 [Multicraft] Loading server properties
07.11 10:39:30 [Multicraft] Server stopped
07.11 10:39:30 [Multicraft] Retrying server startup
07.11 10:39:25 [Multicraft] Server stopped
07.11 10:39:25 [Multicraft] Server shut down
07.11 10:39:24 [Server] INFO Saving chunks for level 'world'/Overworld
07.11 10:39:24 [Server] INFO Saving worlds
07.11 10:39:24 [Server] INFO Saving players
07.11 10:39:24 [Server] INFO Stopping server
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:500)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.MinecraftServer.stop(MinecraftServer.java:401)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.MinecraftServer.saveChunks(MinecraftServer.java:369)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.WorldServer.save(WorldServer.java:763)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.WorldServer.a(WorldServer.java:791)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.ServerNBTManager.saveWorldData(SourceFile:41)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.WorldNBTStorage.saveWorldData(WorldNBTStorage.java:126)
07.11 10:39:24 [Server] WARN at net.minecraft.server.v1_7_R4.NBTCompressedStreamTools.a(SourceFile:22)




Help me please!!