Accidental crash of OpenGLGDX

Question

Until today, everything was in order with the sound, and then today, out of nowhere, did my audio system simply decide not to work?

When I launch my application, I get this message:

AL lib: (EE) DoReset: Failed to initialize audio client: 0x887c0032
LwjglApplication: Couldn't initialize audio, disabling audio
org.lwjgl.openal.OpenALException: Invalid Device
    at org.lwjgl.openal.Util.checkALCError(Util.java:55)
    at org.lwjgl.openal.ALC10.alcCreateContext(ALC10.java:251)
    at org.lwjgl.openal.AL.init(AL.java:173)
    at org.lwjgl.openal.AL.create(AL.java:143)
    at org.lwjgl.openal.AL.create(AL.java:102)
    at org.lwjgl.openal.AL.create(AL.java:206)
    at com.badlogic.gdx.backends.lwjgl.audio.OpenALAudio.<init>(OpenALAudio.java:72)
    at com.badlogic.gdx.backends.lwjgl.LwjglApplication.<init>(LwjglApplication.java:83)
    at com.badlogic.gdx.backends.lwjgl.LwjglApplication.<init>(LwjglApplication.java:64)
    at com.uriopass.supergun.desktop.SupergunLauncher.main(SupergunLauncher.java:41)

Looks like I can't do anything about it. So I was wondering if there is a way to actually KNOW that I cannot use the sound and therefore turn it off.