Shift T exception

debug.log

[00:57:42] [Server thread/FATAL] [net.minecraft.server.MinecraftServer]: Error executing task
java.util.concurrent.ExecutionException: java.lang.ClassCastException: com.google.common.util.concurrent.ListenableFutureTask cannot be cast to net.minecraft.entity.player.EntityPlayerMP
	at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_191]
	at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_191]
	at net.minecraft.util.Util.func_181617_a(SourceFile:47) [h.class:?]
	at org.spongepowered.common.SpongeImplHooks.onUtilRunTask(SpongeImplHooks.java:297) [SpongeImplHooks.class:1.12.2-2768-7.1.5-RC3512]
	at net.minecraft.server.MinecraftServer.redirect$onRun$zjl000(MinecraftServer.java:3970) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397) [nz.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Caused by: java.lang.ClassCastException: com.google.common.util.concurrent.ListenableFutureTask cannot be cast to net.minecraft.entity.player.EntityPlayerMP
	at org.spongepowered.mod.event.SpongeToForgeEventFactory.createAndPostServerChatEvent(SpongeToForgeEventFactory.java:309) ~[SpongeToForgeEventFactory.class:1.12.2-2768-7.1.5-RC3512]
	at org.spongepowered.mod.event.SpongeToForgeEventFactory.createAndPostForgeEvent(SpongeToForgeEventFactory.java:240) ~[SpongeToForgeEventFactory.class:1.12.2-2768-7.1.5-RC3512]
	at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:338) ~[SpongeModEventManager.class:1.12.2-2768-7.1.5-RC3512]
	at org.spongepowered.mod.event.SpongeModEventManager.extendedPost(SpongeModEventManager.java:435) ~[SpongeModEventManager.class:1.12.2-2768-7.1.5-RC3512]
	at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:404) ~[SpongeModEventManager.class:1.12.2-2768-7.1.5-RC3512]
	at org.spongepowered.common.event.SpongeEventManager.post(SpongeEventManager.java:465) ~[SpongeEventManager.class:1.12.2-2768-7.1.5-RC3512]
	at org.spongepowered.common.SpongeImpl.postEvent(SpongeImpl.java:242) ~[SpongeImpl.class:1.12.2-2768-7.1.5-RC3512]
	at org.spongepowered.common.text.chat.ChatUtil.sendMessage(ChatUtil.java:60) ~[ChatUtil.class:1.12.2-2768-7.1.5-RC3512]
	at net.minecraft.server.management.PlayerList.func_148544_a(PlayerList.java:2097) ~[pl.class:?]
	at vazkii.quark.management.feature.LinkItems.linkItem(LinkItems.java:61) ~[LinkItems.class:?]
	at vazkii.quark.base.network.message.MessageLinkItem.lambda$handleMessage$0(MessageLinkItem.java:33) ~[MessageLinkItem.class:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_191]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_191]
	at net.minecraft.util.Util.func_181617_a(SourceFile:46) ~[h.class:?]
	... 7 more