[21:01:16] [ERROR] Error occurred while executing command 'pokexp info' for source EntityPlayerMP['SnowBlitzz'/125810, l='world', x=-1808.93, y=76.00, z=-910.32]: org.spongepowered.api.service.permission.SubjectCollection.get(Ljava/lang/String;)Lorg/spongepowered/api/service/permission/Subject;

[21:01:16] java.lang.NoSuchMethodError: org.spongepowered.api.service.permission.SubjectCollection.get(Ljava/lang/String;)Lorg/spongepowered/api/service/permission/Subject;

[21:01:16] at com.github.happyzleaf.pokexpmultiplier.AlgorithmUtilities.algorithmPerUser(AlgorithmUtilities.java:18) ~[AlgorithmUtilities.class:?]

[21:01:16] at com.github.happyzleaf.pokexpmultiplier.PokexpMultiplier.lambda$init$1(PokexpMultiplier.java:79) ~[PokexpMultiplier.class:?]

[21:01:16] at org.spongepowered.api.command.args.ChildCommandElementExecutor.execute(ChildCommandElementExecutor.java:257) ~[ChildCommandElementExecutor.class:1.12.2-2555-7.0.0-BETA-2800]

[21:01:16] at org.spongepowered.api.command.spec.CommandSpec.process(CommandSpec.java:383) ~[CommandSpec.class:1.12.2-2555-7.0.0-BETA-2800]

[21:01:16] at org.spongepowered.api.command.dispatcher.SimpleDispatcher.process(SimpleDispatcher.java:342) ~[SimpleDispatcher.class:1.12.2-2555-7.0.0-BETA-2800]

[21:01:16] at org.spongepowered.common.command.SpongeCommandManager.process(SpongeCommandManager.java:322) [SpongeCommandManager.class:1.12.2-2555-7.0.0-BETA-2800]

[21:01:16] at net.minecraft.command.ServerCommandManager.func_71556_a(SourceFile:1083) [dh.class:?]

[21:01:16] at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:958) [pa.class:?]

[21:01:16] at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:937) [pa.class:?]

[21:01:16] at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:37) [la.class:?]

[21:01:16] at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:9) [la.class:?]

[21:01:16] at org.spongepowered.common.network.PacketUtil.onProcessPacket(PacketUtil.java:149) [PacketUtil.class:1.12.2-2555-7.0.0-BETA-2800]

[21:01:16] at net.minecraft.network.PacketThreadUtil$1.redirect$onProcessPacket$zjp000(SourceFile:539) [hv$1.class:?]

[21:01:16] at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [hv$1.class:?]

[21:01:16] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_131]

[21:01:16] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_131]

[21:01:16] at net.minecraft.util.Util.func_181617_a(SourceFile:46) [h.class:?]

[21:01:16] at org.spongepowered.common.SpongeImplHooks.onUtilRunTask(SpongeImplHooks.java:274) [SpongeImplHooks.class:1.12.2-2555-7.0.0-BETA-2800]

[21:01:16] at net.minecraft.server.MinecraftServer.redirect$onRun$zif000(MinecraftServer.java:4007) [MinecraftServer.class:?]

[21:01:16] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:721) [MinecraftServer.class:?]

[21:01:16] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:396) [nz.class:?]

[21:01:16] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) [MinecraftServer.class:?]

[21:01:16] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) [MinecraftServer.class:?]

[21:01:16] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]