[02:29:31 WARN]: [UHPlugin] Task #79 for UHPlugin v0.7 §cdev§r generated an exception
java.lang.IllegalArgumentException: Health must be between 0 and 20.0
at org.bukkit.craftbukkit.v1_7_R4.entity.CraftLivingEntity.setHealth(CraftLivingEntity.java:81) ~[spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
at me.azenet.UHPlugin.UHScoreboardManager$1.run(UHScoreboardManager.java:167) ~[?:?]
at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:346) [spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:638) [spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot-1.7.10-R0.1-SNAPSHOT.jar:git-Spigot-1551]
The plugin try to set a health of 21.