redwolf344

when i load the server, this pops up. any help? [23:13:47] [Server thread/ERROR]: [ProtocolSupport] Error when loading, shutting down java.lang.ClassCastException: java.util.concurrent.ConcurrentLinkedQueue cannot be cast to java.util.List at protocolsupport.zplatform.impl.spigot.injector.network.SpigotNettyInjector.inject(SpigotNettyInjector.java:24) ~[?:?] at protocolsupport.zplatform.impl.spigot.injector.SpigotPlatformInjector.onLoad(SpigotPlatformInjector.java:16) ~[?:?] at protocolsupport.ProtocolSupport.onLoad(ProtocolSupport.java:71) ~[?:?] at org.bukkit.craftbukkit.v1_15_R1.CraftServer.loadPlugins(CraftServer.java:363) ~[spigot.jar:git-Paper-137] at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:234) ~[spigot.jar:git-Paper-137] at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:885) ~[spigot.jar:git-Paper-137] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]