[01:18:49] [Server thread/INFO]: Frogthink joined the game
[01:18:50] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_171]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_171]
at h.a(SourceFile:47) inecraft_server.1.12_carpet18_05_30.jar:?]
at net.minecraft.server.MinecraftServer.D(MinecraftServer.java:835) inecraft_server.1.12_carpet18_05_30.jar:?]
at nx.D(DedicatedServer.java:406) inecraft_server.1.12_carpet18_05_30.jar:?]
at net.minecraft.server.MinecraftServer.C(MinecraftServer.java:755) inecraft_server.1.12_carpet18_05_30.jar:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:616) inecraft_server.1.12_carpet18_05_30.jar:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
Caused by: java.lang.NullPointerException
at narcolepticfrog.rsmm.server.RSMMServer.sendToPlayer(RSMMServer.java:106) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at narcolepticfrog.rsmm.server.MeterGroup.addPlayer(MeterGroup.java:81) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at narcolepticfrog.rsmm.server.MeterGroup.addPlayer(MeterGroup.java:72) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at narcolepticfrog.rsmm.server.RSMMServer.onChannelRegister(RSMMServer.java:231) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at narcolepticfrog.rsmm.events.ServerPacketEventDispatcher.dispatchChannelRegister(ServerPacketEventDispatcher.java:27) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at carpet.CarpetServer.customPacket(CarpetServer.java:71) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at oy.a(NetHandlerPlayServer.java:1944) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at lh.a(SourceFile:58) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at lh.a(SourceFile:8) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at hv$1.run(SourceFile:13) ~inecraft_server.1.12_carpet18_05_30.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_171]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_171]
at h.a(SourceFile:46) ~inecraft_server.1.12_carpet18_05_30.jar:?]
... 5 more