[15:16:43] [Server thread/INFO]: Server Player: failed to register id 'Smart Moving'
[15:16:43] [Server thread/ERROR]: Encountered an unexpected exception
net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Smart Moving (smartmoving)

Caused by: java.lang.ClassCastException: net.minecraft.server.dedicated.DedicatedPlayerList cannot be cast to java.util.List
        at api.player.server.ServerPlayerAPI.getAllInstancesList(ServerPlayerAPI.java:1839) ~[ServerPlayerAPI.class:?]
        at api.player.server.ServerPlayerAPI.register(ServerPlayerAPI.java:756) ~[ServerPlayerAPI.class:?]
        at api.player.server.ServerPlayerAPI.register(ServerPlayerAPI.java:50) ~[ServerPlayerAPI.class:?]
        at api.player.server.ServerPlayerAPI.register(ServerPlayerAPI.java:43) ~[ServerPlayerAPI.class:?]
        at net.smart.moving.playerapi.SmartMovingServerPlayerBase.registerPlayerBase(SmartMovingServerPlayerBase.java:45) ~[SmartMovingServerPlayerBase.class:?]
        at net.smart.moving.SmartMovingMod.postInit(SmartMovingMod.java:109) ~[SmartMovingMod.class:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_201]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_201]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_201]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_201]
        at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:623) ~[server.jar:git-null]
        at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_201]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_201]
        at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) ~[guava-21.0.jar:?]
        at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.EventBus.post(EventBus.java:217) ~[guava-21.0.jar:?]
        at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219) ~[server.jar:git-null]
        at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197) ~[server.jar:git-null]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_201]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_201]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_201]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_201]
        at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) ~[guava-21.0.jar:?]
        at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) ~[guava-21.0.jar:?]
        at com.google.common.eventbus.EventBus.post(EventBus.java:217) ~[guava-21.0.jar:?]
        at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136) ~[LoadController.class:git-null]
        at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:749) ~[Loader.class:git-null]
        at net.minecraftforge.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:108) ~[FMLServerHandler.class:git-null]
        at net.minecraftforge.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:339) ~[FMLCommonHandler.class:git-null]
        at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:275) ~[nz.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:596) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]