minecraft crashes when i load a singleplayer world, here's the crash log:

Completely ignored arguments: [--nativeLauncherVersion, 301]
[12:39:26] [Client thread/INFO]: Setting user: Frisk22
[12:39:30] [Client thread/WARN]: Skipping bad option: lastServer:
[12:39:30] [Client thread/INFO]: LWJGL Version: 2.9.4
[12:39:32] [Client thread/INFO]: Reloading ResourceManager: Default
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:block.enchantment_table.use
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.husk.ambient
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.husk.death
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.husk.hurt
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.husk.step
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.ambient
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.baby_ambient
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.death
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.hurt
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.step
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.polar_bear.warning
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.stray.ambient
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.stray.death
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.stray.hurt
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.stray.step
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.wither_skeleton.ambient
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.wither_skeleton.death
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.wither_skeleton.hurt
[12:39:39] [Client thread/WARN]: Missing sound for event: minecraft:entity.wither_skeleton.step
[12:39:39] [Sound Library Loader/INFO]: Starting up SoundSystem...
[12:39:39] [Thread-5/INFO]: Initializing LWJGL OpenAL
[12:39:39] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[12:39:39] [Thread-5/INFO]: OpenAL initialized.
[12:39:40] [Sound Library Loader/INFO]: Sound engine started
[12:39:49] [Client thread/INFO]: Created: 1024x512 textures-atlas
[12:40:11] [Server thread/INFO]: Starting integrated minecraft server version 1.10-pre1
[12:40:11] [Server thread/INFO]: Generating keypair
[12:40:12] [Server thread/INFO]: Preparing start region for level 0
[12:40:14] [Server thread/INFO]: Preparing spawn area: 0%
[12:40:15] [Server thread/INFO]: Preparing spawn area: 16%
[12:40:16] [Server thread/INFO]: Preparing spawn area: 50%
[12:40:17] [Server thread/INFO]: Preparing spawn area: 86%
[12:40:18] [Server thread/INFO]: Changing view distance to 12, from 10
[12:40:20] [Server thread/INFO]: Frisk22[local:E:08a12c9c] logged in with entity id 2464 at (141.5, 80.0, 130.5)
[12:40:20] [Server thread/INFO]: Frisk22 joined the game
[12:40:26] [Server thread/INFO]: Saving and pausing game...
[12:40:26] [Server thread/INFO]: Saving chunks for level 'crash'/Overworld
[12:40:28] [Server thread/INFO]: Saving chunks for level 'crash'/Nether
[12:40:28] [Server thread/INFO]: Saving chunks for level 'crash'/The End
[12:40:28] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 9671ms behind, skipping 193 tick(s)
[12:41:14] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 7833ms behind, skipping 156 tick(s)
[12:41:23] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2225ms behind, skipping 44 tick(s)