Bukkit

What steps will reproduce the problem?
1.
2.users placing a shop
3.

What is the expected output? What do you see instead?
21:31:10 [SEVERE] Reached end of stream for /80.197.88.144
21:31:12 [SEVERE] Could not pass event TransactionEvent to ChestShopDB v1.0
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:35)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at com.Acrobot.ChestShop.Listeners.Player.PlayerInteract.onInteract(PlayerInteract.java:109)
        at sun.reflect.GeneratedMethodAccessor187.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)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:35)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at org.bukkit.craftbukkit.v1_6_R2.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:192)
        at net.minecraft.server.v1_6_R2.PlayerInteractManager.dig(PlayerInteractManager.java:108)
        at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:540)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig.handle(SourceFile:46)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf.CGLIB$handle$0(<generated>)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf$$FastClassByCGLIB$$c35e4996.invoke(<generated>)
        at com.comphenix.net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at com.comphenix.protocol.injector.packet.ReadPacketModifier.intercept(ReadPacketModifier.java:102)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf.handle(<generated>)
        at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
        at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:118)
        at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
        at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
        at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
        at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
        at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
        at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NumberFormatException: For input string: "b 5"
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at net.prawny.ChestShopDB.listeners.TransactionListener.onTransaction(TransactionListener.java:61)
        at sun.reflect.GeneratedMethodAccessor544.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)
        ... 31 more
21:31:12 [SEVERE] Could not pass event TransactionEvent to ChestShopDB v1.0
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:35)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at com.Acrobot.ChestShop.Listeners.Player.PlayerInteract.onInteract(PlayerInteract.java:109)
        at sun.reflect.GeneratedMethodAccessor187.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)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:35)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at org.bukkit.craftbukkit.v1_6_R2.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:192)
        at net.minecraft.server.v1_6_R2.PlayerInteractManager.dig(PlayerInteractManager.java:108)
        at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:540)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig.handle(SourceFile:46)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf.CGLIB$handle$0(<generated>)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf$$FastClassByCGLIB$$c35e4996.invoke(<generated>)
        at com.comphenix.net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at com.comphenix.protocol.injector.packet.ReadPacketModifier.intercept(ReadPacketModifier.java:102)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf.handle(<generated>)
        at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
        at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:118)
        at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
        at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
        at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
        at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
        at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
        at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NumberFormatException: For input string: "b 5"
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at net.prawny.ChestShopDB.listeners.TransactionListener.onTransaction(TransactionListener.java:61)
        at sun.reflect.GeneratedMethodAccessor544.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)
        ... 31 more
21:31:13 [SEVERE] Could not pass event TransactionEvent to ChestShopDB v1.0
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:35)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at com.Acrobot.ChestShop.Listeners.Player.PlayerInteract.onInteract(PlayerInteract.java:109)
        at sun.reflect.GeneratedMethodAccessor187.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)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:35)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at org.bukkit.craftbukkit.v1_6_R2.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:192)
        at net.minecraft.server.v1_6_R2.PlayerInteractManager.dig(PlayerInteractManager.java:108)
        at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:540)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig.handle(SourceFile:46)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf.CGLIB$handle$0(<generated>)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf$$FastClassByCGLIB$$c35e4996.invoke(<generated>)
        at com.comphenix.net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
        at com.comphenix.protocol.injector.packet.ReadPacketModifier.intercept(ReadPacketModifier.java:102)
        at net.minecraft.server.v1_6_R2.Packet14BlockDig$$EnhancerByCGLIB$$1533acbf.handle(<generated>)
        at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296)
        at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:118)
        at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:30)
        at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:590)
        at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
        at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
        at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
        at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NumberFormatException: For input string: "b 5"
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at net.prawny.ChestShopDB.listeners.TransactionListener.onTransaction(TransactionListener.java:61)
        at sun.reflect.GeneratedMethodAccessor544.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)
        ... 31 more

What version of the product are you using?

1.0
Do you have an error log of what happened?
above

Please provide any additional information below.
#2815, craftbukkit 1.6.2