Builders Plot - 1.3.1 Issue

12:03:20 [INFO] [BuildersPlot] Enabling BuildersPlot v1.3.1
12:03:20 [SEVERE] Cannot load plugins\BuildersPlot\config.yml
org.bukkit.configuration.InvalidConfigurationException: org.yaml.snakeyaml.error
.YAMLException: Could not deserialize object
        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlCo
nfiguration.java:55)
        at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguratio
n.java:138)
        at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguratio
n.java:105)
        at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(Yam
lConfiguration.java:175)
        at org.bukkit.plugin.java.JavaPlugin.reloadConfig(JavaPlugin.java:117)
        at org.bukkit.plugin.java.JavaPlugin.getConfig(JavaPlugin.java:111)
        at me.firefly.BuildersPlot.BuildersPlot.onEnable(BuildersPlot.java:349)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader
.java:457)
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:381)
        at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugin(CraftServer.jav
a:282)
        at org.bukkit.craftbukkit.v1_5_R2.CraftServer.enablePlugins(CraftServer.
java:264)
        at net.minecraft.server.v1_5_R2.MinecraftServer.j(MinecraftServer.java:3
01)
        at net.minecraft.server.v1_5_R2.MinecraftServer.e(MinecraftServer.java:2
80)
        at net.minecraft.server.v1_5_R2.MinecraftServer.a(MinecraftServer.java:2
40)
        at net.minecraft.server.v1_5_R2.DedicatedServer.init(DedicatedServer.jav
a:150)
        at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java
:379)
        at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:5
73)
Caused by: org.yaml.snakeyaml.error.YAMLException: Could not deserialize object
        at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.c
onstruct(YamlConstructor.java:37)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseCo
nstructor.java:183)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructSequenceStep2
(BaseConstructor.java:277)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructSequence(Base
Constructor.java:248)
        at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlSeq.const
ruct(SafeConstructor.java:440)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseCo
nstructor.java:183)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndSte
p(BaseConstructor.java:326)
        at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndSte
p(SafeConstructor.java:143)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseC
onstructor.java:307)
        at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.const
ruct(SafeConstructor.java:459)
        at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.c
onstruct(YamlConstructor.java:26)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseCo
nstructor.java:183)
        at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(Base
Constructor.java:142)
        at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseCons
tructor.java:128)
        at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
        at org.yaml.snakeyaml.Yaml.load(Yaml.java:399)
        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlCo
nfiguration.java:53)
        ... 17 more
Caused by: java.lang.IllegalArgumentException: Specified class does not exist ('
PlayerProperties')
        at org.bukkit.configuration.serialization.ConfigurationSerialization.des
erializeObject(ConfigurationSerialization.java:177)
        at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.c
onstruct(YamlConstructor.java:35)
        ... 33 more
12:03:20 [INFO] BuildersPlot 1.3.1: Plot config loaded.
12:03:20 [INFO] BuildersPlot 1.3.1: Members Loaded.
12:03:20 [INFO] BuildersPlot 1.3.1: Mods Loaded.
12:03:20 [INFO] BuildersPlot 1.3.1: Ignoring World: world
12:03:20 [INFO] BuildersPlot 1.3.1: Ignoring World: world_nether
12:03:20 [INFO] BuildersPlot 1.3.1: Ignoring World: world_the_end
12:03:20 [INFO] BuildersPlot 1.3.1: Ignoring World: Wilderness
12:03:20 [INFO] BuildersPlot 1.3.1: Ignoring World: PVP
12:03:20 [INFO] BuildersPlot 1.3.1: Player properties config loaded.
12:03:20 [INFO] BuildersPlot 1.3.1: successfully enabled!