Помогите Ошибка в консоли

>[2K [08:34:10 ERROR]: Could not pass event PlayerChatEvent to AChatSystem v3.5
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:499) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at net.minecraft.server.v1_12_R1.PlayerConnection$7.evaluate(PlayerConnection.java:1323) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at org.bukkit.craftbukkit.v1_12_R1.util.Waitable.run(Waitable.java:24) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:758) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_221]
Caused by: java.lang.NoSuchMethodError: org.bukkit.Bukkit.getOnlinePlayers()[Lorg/bukkit/entity/Player;
at ru.jampire.uralchat.ChatListener.onPlayerChat(ChatListener.java:112) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_221]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_221]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_221]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_221]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[craftbukkit-spigot-1.12.2.jar:git-Spigot-93e20b3-e8b6e4f]