13:37:55 [INFO] Th3Z0n3 issued server command: /lottery enter 1
13:37:55 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'lott
ery' in plugin Lottery v1.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:19
2)
        at org.bukkit.craftbukkit.v1_6_R2.CraftServer.dispatchCommand(CraftServe
r.java:523)
        at net.minecraft.server.v1_6_R2.PlayerConnection.handleCommand(PlayerCon
nection.java:954)
        at net.minecraft.server.v1_6_R2.PlayerConnection.chat(PlayerConnection.j
ava:872)
        at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java
:829)
        at net.minecraft.server.v1_6_R2.Packet3Chat.handle(SourceFile:49)
        at net.minecraft.server.v1_6_R2.NetworkManager.b(NetworkManager.java:296
)
        at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java
:116)
        at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R2.DedicatedServerConnection.b(SourceFile:3
0)
        at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:5
90)
        at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:2
26)
        at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:4
86)
        at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java
:419)
        at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:5
82)
Caused by: java.lang.NumberFormatException: For input string: "2.5"
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.valueOf(Unknown Source)
        at com.cupcakes69.lottery.Lottery.onCommand(Lottery.java:189)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
        ... 15 more