If you have any crashlog, please post them
said Titou
I am not sure if this helps, since the crashlogs name indicates that it happened 5 days ago. well, here anyways:
crashlog_20160731_182633
class java.lang.IllegalArgumentException: Number of remaining buffer elements is 0, must be at least 1. Because at most 1 elements can be returned, a buffer with at least 1 elements is required, regardless of actual returned element count
org.lwjgl.BufferChecks.throwBufferSizeException(BufferChecks.java:162)
org.lwjgl.BufferChecks.checkBufferSize(BufferChecks.java:189)
org.lwjgl.BufferChecks.checkBuffer(BufferChecks.java:258)
org.lwjgl.openal.AL10.alSource(AL10.java:823)
org.newdawn.slick.openal.SoundStore.playAsSoundAt(SoundStore.java:419)
org.newdawn.slick.openal.SoundStore.playAsSound(SoundStore.java:378)
org.newdawn.slick.openal.AudioImpl.playAsSoundEffect(AudioImpl.java:84)
org.newdawn.slick.Sound.play(Sound.java:117)
sound.Sfx.playRandomPitch(Sfx.java:116)
creature.CwalkHandler.move(CwalkHandler.java:129)
creature.CwalkHandler$1.run(CwalkHandler.java:141)
java.util.TimerThread.mainLoop(Unknown Source)
java.util.TimerThread.run(Unknown Source)