2013-05-07 09:04:51 [SEVERE] Could not pass event InventoryClickEvent to GlobalMarket v1.2.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:26)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
	at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:1189)
	at net.minecraft.server.v1_5_R3.Packet102WindowClick.handle(SourceFile:31)
	at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:186)
	at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:109)
	at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
	at org.spigotmc.MultiplexingServerConnection.b(MultiplexingServerConnection.java:72)
	at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:583)
	at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:224)
	at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472)
	at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404)
	at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NumberFormatException: For input string: "7,5"
	at sun.misc.FloatingDecimal.readJavaFormatString(Unknown Source)
	at java.lang.Double.valueOf(Unknown Source)
	at com.survivorserver.GlobalMarket.MarketStorage.storePayment(MarketStorage.java:131)
	at com.survivorserver.GlobalMarket.MarketCore.buyListing(MarketCore.java:56)
	at com.survivorserver.GlobalMarket.InterfaceListener.handleListingsAction(InterfaceListener.java:103)
	at com.survivorserver.GlobalMarket.InterfaceListener.handleClickEvent(InterfaceListener.java:40)
	at sun.reflect.GeneratedMethodAccessor149.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
	... 15 more