[16:48:53] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
net.minecraft.util.ReportedException: Ticking block entity
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:773) ~[MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) ~[MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:279) ~[chd.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:750) [?:1.8.0_382]
Caused by: java.lang.IllegalArgumentException: bound must be positive
at java.util.Random.nextInt(Random.java:388) ~[?:1.8.0_382]
at com.hbm.tileentity.machine.rbmk.TileEntityRBMKBase.jump(TileEntityRBMKBase.java:129) ~[TileEntityRBMKBase.class:1.9.8]
at com.hbm.tileentity.machine.rbmk.TileEntityRBMKBase.func_73660_a(TileEntityRBMKBase.java:114) ~[TileEntityRBMKBase.class:1.9.8]
at com.hbm.tileentity.machine.rbmk.TileEntityRBMKRod.func_73660_a(TileEntityRBMKRod.java:100) ~[TileEntityRBMKRod.class:1.9.8]
at net.minecraft.world.World.func_72939_s(World.java:1838) ~[amu.class:?]
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613) ~[oo.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767) ~[MinecraftServer.class:?]
... 4 more

seems to happen every time when putting digamma rod in this

Fixed