[Issue]

[LeCraft2Ouf]

Describe the bug
Error

Server Information (please complete the following information):

• Minecraft Version PaperSpigot 1.8.8
• Plugin Version 3.7.5

[15:18:11 ERROR]: Could not pass event EntityDamageByEntityEvent to AdvancedSpawners v3.7.5 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[server.jar:git-TacoSpigot-"95870a93"] at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[server.jar:git-TacoSpigot-"95870a93"] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[server.jar:git-TacoSpigot-"95870a93"] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [server.jar:git-TacoSpigot-"95870a93"] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [server.jar:git-TacoSpigot-"95870a93"] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callEvent(CraftEventFactory.java:87) [server.jar:git-TacoSpigot-"95870a93"] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:553) [server.jar:git-TacoSpigot-"95870a93"] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:466) [server.jar:git-TacoSpigot-"95870a93"] at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.handleLivingEntityDamageEvent(CraftEventFactory.java:585) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityLiving.d(EntityLiving.java:1112) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityHuman.d(EntityHuman.java:860) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityLiving.damageEntity(EntityLiving.java:748) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityHuman.damageEntity(EntityHuman.java:801) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityPlayer.damageEntity(EntityPlayer.java:504) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityMonster.r(EntityMonster.java:72) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityZombie.r(EntityZombie.java:225) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.PathfinderGoalMeleeAttack.e(SourceFile:122) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.PathfinderGoalSelector.a(PathfinderGoalSelector.java:91) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityInsentient.doTick(EntityInsentient.java:480) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityLiving.m(EntityLiving.java:1642) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityInsentient.m(EntityInsentient.java:339) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityMonster.m(EntityMonster.java:20) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityZombie.m(EntityZombie.java:163) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityLiving.t_(EntityLiving.java:1506) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityInsentient.t_(EntityInsentient.java:194) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityMonster.t_(EntityMonster.java:24) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.EntityZombie.t_(EntityZombie.java:221) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.World.entityJoinedWorld(World.java:1651) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.World.g(World.java:1618) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.World.tickEntities(World.java:1455) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.WorldServer.tickEntities(WorldServer.java:600) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:848) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:715) [server.jar:git-TacoSpigot-"95870a93"] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:618) [server.jar:git-TacoSpigot-"95870a93"] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_282] Caused by: java.lang.NullPointerException