Bukkit

What steps will reproduce the problem?
Logging in and logging out gives a error

What is the expected output? What do you see instead?
I expect it to count loggings, travel distance, etc. it doesn't

What version of the product are you using?
v5.0.4
Bukkit: 1.2.5

Do you have an error log of what happened?
When someone logges in:

06:54:32 [WARNING] Task of 'Netstats' generated an exception
java.lang.NumberFormatException: For input string: "19,48"
        at sun.misc.FloatingDecimal.readJavaFormatString(Unknown Source)
        at java.lang.Double.valueOf(Unknown Source)
        at com.sparkedia.valrix.netstats.NetRepeater.run(NetRepeater.java:39)
        at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(C
raftScheduler.java:126)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:517)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
06:55:20 [INFO] Marvs87 lost connection: disconnect.quitting
06:55:20 [INFO] Connection reset

When someone logges out:

06:55:20 [SEVERE] Could not pass event PlayerQuitEvent to Netstats
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:303)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:459)
        at net.minecraft.server.ServerConfigurationManager.disconnect(ServerConf
igurationManager.java:179)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:698)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:113)
        at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:7
8)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:551)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.NumberFormatException: For input string: "224,98"
        at sun.misc.FloatingDecimal.readJavaFormatString(Unknown Source)
        at java.lang.Double.valueOf(Unknown Source)
        at com.sparkedia.valrix.netstats.NetPlayerListener.onPlayerQuit(NetPlaye
rListener.java:111)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.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.ja
va:301)
        ... 10 more

Please provide any additional information below.
don't have any

Do you want to give you my recompiled version? i managed to clear Could not pass event PlayerQuitEvent to Netstats and Could not pass event PlayerJoinEvent to Netstats error. But console get spamed with Could not pass event EntityDeathEvent to Netstats form time to time.

@MrSerios: Go

Did you ever manage to get rid of the "Could not pass event errors"?

not from all, since I can't trace what causing EntityDeathEvent errors