Error keeps showing up on shutdown server [Help]

[NotFlow69]

Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.StringBuilder.length()" because "this.bufferedMessage" is null at me.reimnop.d4f.console.DiscordConsoleBuffer.getLength(DiscordConsoleBuffer.java:17) ~[discord4fabric-1.19.4-1.10.3.jar:?] at me.reimnop.d4f.console.ConsoleChannelHandler.lambda$init$2(ConsoleChannelHandler.java:61) ~[discord4fabric-1.19.4-1.10.3.jar:?] at me.reimnop.d4f.events.OnConsoleMessageReceivedCallback.lambda$static$0(OnConsoleMessageReceivedCallback.java:12) ~[discord4fabric-1.19.4-1.10.3.jar:?] at me.reimnop.d4f.listeners.ConsoleMessageListener.append(ConsoleMessageListener.java:15) ~[discord4fabric-1.19.4-1.10.3.jar:?] at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:161) ~[log4j-core-2.19.0.jar:?] ... 23 more