[09:49:50] [Server thread/WARN]: org.bukkit.configuration.InvalidConfigurationException: unacceptable character ' ' (0x0) special characters are not allowed
in "'string'", position 0
[09:49:50] [Server thread/WARN]:        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:57)
[09:49:50] [Server thread/WARN]:        at com.nisovin.shopkeepers.ShopkeepersPlugin.load(ShopkeepersPlugin.java:1089)
[09:49:50] [Server thread/WARN]:        at com.nisovin.shopkeepers.ShopkeepersPlugin.onEnable(ShopkeepersPlugin.java:219)
[09:49:50] [Server thread/WARN]:        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316)
[09:49:50] [Server thread/WARN]:        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:332)
[09:49:50] [Server thread/WARN]:        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:417)
[09:49:50] [Server thread/WARN]:        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:476)
[09:49:50] [Server thread/WARN]:        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:394)
[09:49:50] [Server thread/WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.n(MinecraftServer.java:360)
[09:49:50] [Server thread/WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.g(MinecraftServer.java:334)
[09:49:50] [Server thread/WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.a(MinecraftServer.java:290)
[09:49:50] [Server thread/WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.init(DedicatedServer.java:210)
[09:49:50] [Server thread/WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:458)
[09:49:50] [Server thread/WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628)
[09:49:50] [Server thread/WARN]: Caused by: unacceptable character ' ' (0x0) special characters are not allowed
in "'string'", position 0
[09:49:50] [Server thread/WARN]:        at org.yaml.snakeyaml.reader.StreamReader.checkPrintable(StreamReader.java:67)
[09:49:50] [Server thread/WARN]:        at org.yaml.snakeyaml.reader.StreamReader.<init>(StreamReader.java:47)
[09:49:50] [Server thread/WARN]:        at org.yaml.snakeyaml.Yaml.load(Yaml.java:400)
[09:49:50] [Server thread/WARN]:        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:55)
[09:49:50] [Server thread/WARN]:        ... 13 more