Points API 1.6.3 error on spigot 1.10

[10:40:15 ERROR]: Could not pass event AsyncPlayerChatEvent to PointsAPI v1.6.3
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-de459a2-51263e9]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-de459a2-51263e9]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-de459a2-51263e9]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [spigot.jar:git-Spigot-de459a2-51263e9]
        at net.minecraft.server.v1_10_R1.PlayerConnection.chat(PlayerConnection.java:1280) [spigot.jar:git-Spigot-de459a2-51263e9]
        at net.minecraft.server.v1_10_R1.PlayerConnection.a(PlayerConnection.java:1218) [spigot.jar:git-Spigot-de459a2-51263e9]
        at net.minecraft.server.v1_10_R1.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [spigot.jar:git-Spigot-de459a2-51263e9]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_111]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_111]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_111]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_111]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
Caused by: java.util.UnknownFormatConversionException: Conversion = '?'
        at org.bukkit.event.player.AsyncPlayerChatEvent.setFormat(AsyncPlayerChatEvent.java:100) ~[spigot.jar:git-Spigot-de459a2-51263e9]
        at me.BukkitPVP.PointsAPI.PointsAPI.onChat(PointsAPI.java:404) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_111]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_111]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot.jar:git-Spigot-de459a2-51263e9]
        ... 11 more