Sound Engine Loading Bug or Luncher loading Bug

see Luncher Log, i hafe no Craschreport when this Bug come back i do a manual crasch in Game, sorry for my bad Englisch I am Germen.

Completely ignored arguments: [--nativeLauncherVersion, 307]
[18:32:40] [Client thread/INFO]: Setting user: Nirimis
[18:32:42] [Client thread/INFO]: LWJGL Version: 2.9.4
[18:32:43] [Client thread/INFO]: Reloading ResourceManager: Default
[18:32:47] [Sound Library Loader/INFO]: Starting up SoundSystem...
[18:32:48] [Thread-5/INFO]: Initializing LWJGL OpenAL
[18:32:48] [Thread-5/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[18:32:48] [Thread-5/ERROR]: Error in class 'LibraryLWJGLOpenAL'
[18:32:48] [Thread-5/ERROR]: Unable to initialize OpenAL.  Probable cause: OpenAL not supported.
[18:32:48] [Thread-5/WARN]: ERROR MESSAGE:
[18:32:48] [Thread-5/INFO]: Could not locate OpenAL library.
[18:32:48] [Thread-5/WARN]: STACK TRACE:
[18:32:48] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:156)
[18:32:48] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:102)
[18:32:48] [Thread-5/INFO]: org.lwjgl.openal.AL.create(AL.java:206)
[18:32:48] [Thread-5/INFO]: paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[18:32:48] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[18:32:48] [Thread-5/INFO]: paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[18:32:48] [Thread-5/INFO]: paulscode.sound.CommandThread.run(CommandThread.java:121)
[18:32:48] [Sound Library Loader/WARN]: ERROR MESSAGE:
[18:32:48] [Sound Library Loader/INFO]: Could not locate OpenAL library.
[18:32:48] [Sound Library Loader/INFO]: Starting up SoundSystem...
[18:32:48] [Thread-7/INFO]: Switching to No Sound
[18:32:48] [Thread-7/INFO]: (Silent Mode)
[18:32:49] [Sound Library Loader/INFO]: Sound engine started
[18:32:50] [Client thread/INFO]: Created: 1024x512 textures-atlas
[18:33:12] [Client thread/INFO]: Stopping!
[18:33:12] [Client thread/INFO]: SoundSystem shutting down...
[18:33:12] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release