[16:37:27] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: bound must be positive
at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_121]
at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_121]
at net.minecraft.util.Util.runTask(Util.java:27) [Util.class:?]
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:753) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:698) [MinecraftServer.class:?]
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:156) [IntegratedServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:547) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]
Caused by: java.lang.IllegalArgumentException: bound must be positive
at java.util.Random.nextInt(Unknown Source) ~[?:1.8.0_121]
at bassebombecraft.item.action.build.BuildTower.createStructure(BuildTower.java:179) ~[BuildTower.class:?]
at bassebombecraft.item.action.build.BuildTower.onItemUse(BuildTower.java:134) ~[BuildTower.class:?]
at bassebombecraft.item.book.GenericBlockClickedBook.onItemUse(GenericBlockClickedBook.java:77) ~[GenericBlockClickedBook.class:?]