2013-06-01 21:13:28 [INFO] Starting minecraft server version 1.5.2
2013-06-01 21:13:28 [INFO] Loading properties
2013-06-01 21:13:28 [INFO] Default game type: SURVIVAL
2013-06-01 21:13:28 [INFO] Generating keypair
2013-06-01 21:13:28 [INFO] Starting Minecraft server on *:25565
2013-06-01 21:13:29 [INFO] This server is running CraftBukkit version git-Bukkit-1.5.1-R0.2-14-g7d19b67-b2767jnks (MC: 1.5.2) (Implementing API version 1.5.2-R0.1-SNAPSHOT)
2013-06-01 21:13:31 [SEVERE] Could not load 'plugins\RegionForSale_2.0.2.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: de/phoenix_iv/regionforsale/RegionForSale : Unsupported major.minor version 51.0
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184)
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
	at org.bukkit.craftbukkit.v1_5_R3.CraftServer.loadPlugins(CraftServer.java:239)
	at org.bukkit.craftbukkit.v1_5_R3.CraftServer.<init>(CraftServer.java:217)
	at net.minecraft.server.v1_5_R3.PlayerList.<init>(PlayerList.java:55)
	at net.minecraft.server.v1_5_R3.DedicatedPlayerList.<init>(SourceFile:11)
	at net.minecraft.server.v1_5_R3.DedicatedServer.init(DedicatedServer.java:106)
	at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:382)
	at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.UnsupportedClassVersionError: de/phoenix_iv/regionforsale/RegionForSale : Unsupported major.minor version 51.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:80)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173)
	... 9 more
2013-06-01 21:13:31 [INFO] [GroupManager] Loading GroupManager v2.0 (2.10.1) (Phoenix)
2013-06-01 21:13:31 [INFO] [SWatchdog] Loading SWatchdog v1.18
2013-06-01 21:13:31 [INFO] [WorldEdit] Loading WorldEdit v5.5.6
2013-06-01 21:13:31 [INFO] [Permissions] Loading Permissions v3.1.6
2013-06-01 21:13:31 [INFO] [BookRules] Loading BookRules v2.0
2013-06-01 21:13:31 [INFO] [Vault] Loading Vault v1.2.25-b320
2013-06-01 21:13:31 [INFO] [Votifier] Loading Votifier v1.9
2013-06-01 21:13:31 [INFO] [WorldGuard] Loading WorldGuard v5.7.5
2013-06-01 21:13:31 [INFO] [Essentials] Loading Essentials v2.10.1
2013-06-01 21:13:31 [INFO] [EssentialsProtect] Loading EssentialsProtect v2.10.1
2013-06-01 21:13:31 [INFO] MLog clients using java 1.4+ standard logging.
2013-06-01 21:13:31 [INFO] [EssentialsSpawn] Loading EssentialsSpawn v2.10.1
2013-06-01 21:13:32 [INFO] [EssentialsChat] Loading EssentialsChat v2.10.1
2013-06-01 21:13:32 [INFO] [EssentialsAntiBuild] Loading EssentialsAntiBuild v2.10.1
2013-06-01 21:13:33 [INFO] [Vault] Enabling Vault v1.2.25-b320
2013-06-01 21:13:33 [INFO] [Vault][Economy] Essentials Economy found: Waiting
2013-06-01 21:13:33 [INFO] [Vault][Permission] GroupManager found: Waiting
2013-06-01 21:13:33 [INFO] [Vault][Permission] SuperPermissions loaded as backup permission system.
2013-06-01 21:13:33 [INFO] [Vault][Chat] GroupManager found: Waiting
2013-06-01 21:13:33 [INFO] [Vault] Enabled Version 1.2.25-b320
2013-06-01 21:13:33 [INFO] [Vault][Economy] Essentials Economy hooked.
2013-06-01 21:13:33 [INFO] [Vault][Permission] GroupManager hooked.