So basically, I run minecraft normally
I either change texturepack, go on singleplayer or multiplayer and this shows up.
21:34:58 launcher Preparing to launch minecraft client for 1.11.2
21:34:58 launcher Checking installations.
21:34:58 launcher Minecraft client 1.11.2 is ready to start.
21:34:58 launcher Starting!
21:34:58 launcher Using default game log configuration client-1.7.xml (outputs XML)
21:34:59 bes Setting user: ItsMeJoshie
21:35:00 beu Skipping bad option: lastServer:
21:35:00 bes LWJGL Version: 2.9.4
21:35:00 cae Reloading ResourceManager: Default
21:35:00 ccq Starting up SoundSystem...
21:35:01 ccq Initializing LWJGL OpenAL
21:35:01 ccq (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
21:35:01 ccq OpenAL initialized.
21:35:01 ccq Sound engine started
21:35:02 byy Created: 1024x512 textures-atlas
21:35:29 launcher Process closed with exit code -805306369

Please, somebody help me out? I've tried everything, even reinstalled minecraft and java!
21:35:29 launcher