Everytime I join our server I get this one here:

[B#353] Exception in thread "Thread-581" [01:18:33] [Thread-581/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.NullPointerException
[B#353] [01:18:33] [Thread-581/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at com.jcraft.jorbis.Block.(Block.java:55)
[B#353] [01:18:33] [Thread-581/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at paulscode.sound.codecs.CodecJOrbis.initialize(CodecJOrbis.java:252)
[B#353] [01:18:33] [Thread-581/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at paulscode.sound.libraries.SourceLWJGLOpenAL.preLoad(SourceLWJGLOpenAL.java:687)
[B#353] [01:18:33] [Thread-581/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at paulscode.sound.Source.stream(Source.java:928)
[B#353] [01:18:33] [Thread-581/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at paulscode.sound.StreamThread.run(StreamThread.java:129)

Besides that my log is full of:

[B#353] [01:26:15] [Thread-1067/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[B#353] [01:26:15] [Thread-1067/ERROR]: Source '3fe6147b-39e9-49ba-bbea-8905e9a3b05b' not found in method 'play'

Not sure if that is related though.

Minecraft version 1.12.2

Newest forge, newest ambientSounds.

This issue will be closed due to inactivity.

Could try out this version and see if it fixed?
https://www.dropbox.com/s/byivvu6cdtsfj03/AmbientSounds%20v2.1.1%20mc1.12.2.jar?dl=1