[18:41:33 WARN]: java.lang.NoSuchMethodError: net.minecraft.server.v1_11_R1.AxisAlignedBB.b(DDD)Lnet/minecraft/server/v1_11_R1/AxisAlignedBB;
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.PathfinderNormal.a(SourceFile:199)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.PathfinderNormal.a(SourceFile:110)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.Pathfinder.a(SourceFile:82)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.Pathfinder.a(SourceFile:40)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.Pathfinder.a(SourceFile:30)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.NavigationAbstract.a(NavigationAbstract.java:86)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.Navigation.a(SourceFile:52)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.NavigationAbstract.a(NavigationAbstract.java:67)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.NavigationAbstract.a(NavigationAbstract.java:121)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.PathfinderGoalRandomStroll.c(SourceFile:65)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.PathfinderGoalSelector.a(SourceFile:102)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityInsentient.doTick(EntityInsentient.java:663)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityLiving.n(EntityLiving.java:2060)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityInsentient.n(EntityInsentient.java:502)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityAgeable.n(EntityAgeable.java:158)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityAnimal.n(EntityAnimal.java:24)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityRabbit.n(EntityRabbit.java:183)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityLiving.A_(EntityLiving.java:1920)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.EntityInsentient.A_(EntityInsentient.java:245)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.World.entityJoinedWorld(World.java:1717)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.World.h(World.java:1693)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.World.tickEntities(World.java:1524)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.WorldServer.tickEntities(WorldServer.java:601)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:878)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:401)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:747)
[18:41:33 WARN]:        at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:646)
[18:41:33 WARN]:        at java.lang.Thread.run(Thread.java:745)