Bukkit

Found today in logs, huuuuge spam of NPE :

[08:50:45] [Server thread/WARN]: [1vs1] Task #4104 for 1vs1 v1.7.1 #221 generated an exception
java.lang.NullPointerException
<------>at com.gmail.Orscrider.PvP1vs1.arena.GameManager.startRound(GameManager.java:374) ~[?:?]
<------>at com.gmail.Orscrider.PvP1vs1.arena.GameManager.setRoundWinner(GameManager.java:405) ~[?:?]
<------>at com.gmail.Orscrider.PvP1vs1.arena.TimeOut$1.run(TimeOut.java:50) ~[?:?]
<------>at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-PaperSpigot-1f7d532]
<------>at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:701) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-PaperSpigot-1f7d532]
[08:50:46] [Server thread/WARN]: [1vs1] Task #28 for 1vs1 v1.7.1 #221 generated an exception
java.lang.NullPointerException
<------>at com.gmail.Orscrider.PvP1vs1.arena.GameManager.endGame(GameManager.java:387) ~[?:?]
<------>at com.gmail.Orscrider.PvP1vs1.arena.GameManager.setRoundWinner(GameManager.java:403) ~[?:?]
<------>at com.gmail.Orscrider.PvP1vs1.arena.TimeOut$1.run(TimeOut.java:50) ~[?:?]
<------>at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-PaperSpigot-1f7d532]
<------>at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:701) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:307) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549) [spigot.jar:git-PaperSpigot-1f7d532]
<------>at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-PaperSpigot-1f7d532]
[08:50:46] [Server thread/WARN]: [1vs1] Task #4104 for 1vs1 v1.7.1 #221 generated an exception