https://github.com/TheJeterLP/ChatEx/commit/cf32e2c9f31ab1cc554a81cfa41d219f617f0f12
Developer update ChatEX FIX BUG !
[12:17:53] [Async Chat Thread - #22/ERROR]: Could not pass event AsyncPlayerChatEvent to ChatEx v2.5.7
java.lang.IllegalArgumentException: Illegal group reference
at java.util.regex.Matcher.appendExpandedReplacement(Matcher.java:1068) ~[?:?]
at java.util.regex.Matcher.appendReplacement(Matcher.java:998) ~[?:?]
at java.util.regex.Matcher.replaceAll(Matcher.java:1182) ~[?:?]
at java.lang.String.replaceAll(String.java:2126) ~[?:?]
at de.jeter.chatex.utils.adManager.SimpleAdManager.checkForAds(SimpleAdManager.java:100) ~[?:?]
at de.jeter.chatex.ChatListener.onChat(ChatListener.java:72) ~[?:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor428.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:69) ~[patched_1.16.1.jar:git-Paper-77]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:76) ~[patched_1.16.1.jar:git-Paper-77]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[patched_1.16.1.jar:git-Paper-77]