[13:47:48] [Async Chat Thread - #56/ERROR]: Could not pass event AsyncPlayerChatEvent to mAssistant v1.0
org.bukkit.event.EventException: null
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:72) ~[patched_1.12.2.jar:git-Paper-1384]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:74) ~[patched_1.12.2.jar:git-Paper-1384]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.12.2.jar:git-Paper-1384]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:515) [patched_1.12.2.jar:git-Paper-1384]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:497) [patched_1.12.2.jar:git-Paper-1384]
        at net.minecraft.server.v1_12_R1.PlayerConnection.chat(PlayerConnection.java:1387) [patched_1.12.2.jar:git-Paper-1384]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1302) [patched_1.12.2.jar:git-Paper-1384]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [patched_1.12.2.jar:git-Paper-1384]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_171]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_171]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_171]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_171]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_171]
Caused by: java.util.UnknownFormatConversionException: Conversion = 'p'
        at org.bukkit.event.player.AsyncPlayerChatEvent.setFormat(AsyncPlayerChatEvent.java:100) ~[patched_1.12.2.jar:git-Paper-1384]
        at ru.jampire.massistant.modules.chat.manager.ChatManager.lambda$new$0(ChatManager.java:56) ~[?:?]
        at ru.jampire.massistant.modules.chat.manager.ChatManager.AsyncPlayerChatEvent(ChatManager.java:170) ~[?:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor40.execute(Unknown Source) ~[?:?]
        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[patched_1.12.2.jar:git-Paper-1384]
        ... 12 more