Hi!
When I frost walk the ice starts to break and then.. the server crashes.. Please fix!

[15:19:14 INFO]: UUID of player HyperGameHUN is 5730a03f-39e9-390b-b447-4edc55a150c1
[15:19:15 INFO]: HyperGameHUN[/127.0.0.1:57919] logged in with entity id 249 at ([world]-80.39718997478485, 63.0, -281.8469396243072)
[15:19:15 WARN]: File motd.txt does not exist. Creating one for you.
[15:19:15 ERROR]: Encountered an unexpected exception
net.minecraft.server.v1_9_R1.ReportedException: Exception while ticking a block
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:782) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:655) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:554) [spigot.jar:git-Spigot-7d15d07-c194444]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_74]
Caused by: java.lang.NullPointerException
at org.bukkit.craftbukkit.v1_9_R1.block.CraftBlock.getState(CraftBlock.java:260) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at org.bukkit.craftbukkit.v1_9_R1.event.CraftEventFactory.callBlockFadeEvent(CraftEventFactory.java:333) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.BlockIce.b(BlockIce.java:54) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.BlockIceFrost.a(SourceFile:72) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.BlockIceFrost.b(SourceFile:37) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.WorldServer.a(WorldServer.java:732) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.WorldServer.doTick(WorldServer.java:245) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:771) ~[spigot.jar:git-Spigot-7d15d07-c194444]
... 4 more
[15:19:15 ERROR]: Cause of unexpected exception was
java.lang.NullPointerException
at org.bukkit.craftbukkit.v1_9_R1.block.CraftBlock.getState(CraftBlock.java:260) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at org.bukkit.craftbukkit.v1_9_R1.event.CraftEventFactory.callBlockFadeEvent(CraftEventFactory.java:333) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.BlockIce.b(BlockIce.java:54) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.BlockIceFrost.a(SourceFile:72) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.BlockIceFrost.b(SourceFile:37) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.WorldServer.a(WorldServer.java:732) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.WorldServer.doTick(WorldServer.java:245) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:771) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:655) ~[spigot.jar:git-Spigot-7d15d07-c194444]
at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:554) [spigot.jar:git-Spigot-7d15d07-c194444]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_74]
[15:19:15 ERROR]: This crash report has been saved to: C:\Users\HyperGame\Desktop\Szerver\.\crash-reports\crash-2016-03-03_15.19.15-server.txt
[15:19:15 INFO]: Stopping server
[15:19:15 INFO]: Saving players