[MC-103382] instant crash upon loading any world in 1.10

So any time I load a world on 1.10 it loads halfway but whenever I press anything it crashes and takes me back to the Minecraft launcher. I cant find any crash log for it and this is what it shows when it crashes it says this:
Completely ignored arguments: [--nativeLauncherVersion, 301]
[17:38:30] [Client thread/INFO]: Setting user: StarStruckNebula
[17:38:35] [Client thread/INFO]: LWJGL Version: 2.9.4
[17:38:37] [Client thread/INFO]: Reloading ResourceManager: Default
[17:38:39] [Sound Library Loader/INFO]: Starting up SoundSystem...
[17:38:39] [Thread-5/INFO]: Initializing LWJGL OpenAL
[17:38:39] [Thread-5/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
[17:38:40] [Thread-5/INFO]: OpenAL initialized.
[17:38:40] [Sound Library Loader/INFO]: Sound engine started
[17:38:45] [Client thread/INFO]: Created: 1024x512 textures-atlas
[17:50:46] [Client thread/ERROR]: Exception reading C:\Users\Clarkson\AppData\Roaming\.minecraft\saves\ethan world\level.dat
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at ea.a(SourceFile:24) ~[1.10.jar:?]
	at azz.a(SourceFile:82) [1.10.jar:?]
	at azz.c(SourceFile:66) [1.10.jar:?]
	at azw.b(SourceFile:57) [1.10.jar:?]
	at big.e(SourceFile:35) [1.10.jar:?]
	at big.<init>(SourceFile:28) [1.10.jar:?]
	at bie.b(SourceFile:43) [1.10.jar:?]
	at bft.a(SourceFile:372) [1.10.jar:?]
	at bcx.a(SourceFile:900) [1.10.jar:?]
	at bga.a(SourceFile:237) [1.10.jar:?]
	at bft.a(SourceFile:346) [1.10.jar:?]
	at bga.a(SourceFile:498) [1.10.jar:?]
	at bft.k(SourceFile:409) [1.10.jar:?]
	at bft.p(SourceFile:386) [1.10.jar:?]
	at bcx.t(SourceFile:1586) [1.10.jar:?]
	at bcx.av(SourceFile:968) [1.10.jar:?]
	at bcx.a(SourceFile:396) [1.10.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.10.jar:?]
[17:50:46] [Client thread/ERROR]: Exception reading C:\Users\Clarkson\AppData\Roaming\.minecraft\saves\ethan world\level.dat_old
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at ea.a(SourceFile:24) ~[1.10.jar:?]
	at azz.a(SourceFile:82) [1.10.jar:?]
	at azz.c(SourceFile:74) [1.10.jar:?]
	at azw.b(SourceFile:57) [1.10.jar:?]
	at big.e(SourceFile:35) [1.10.jar:?]
	at big.<init>(SourceFile:28) [1.10.jar:?]
	at bie.b(SourceFile:43) [1.10.jar:?]
	at bft.a(SourceFile:372) [1.10.jar:?]
	at bcx.a(SourceFile:900) [1.10.jar:?]
	at bga.a(SourceFile:237) [1.10.jar:?]
	at bft.a(SourceFile:346) [1.10.jar:?]
	at bga.a(SourceFile:498) [1.10.jar:?]
	at bft.k(SourceFile:409) [1.10.jar:?]
	at bft.p(SourceFile:386) [1.10.jar:?]
	at bcx.t(SourceFile:1586) [1.10.jar:?]
	at bcx.av(SourceFile:968) [1.10.jar:?]
	at bcx.a(SourceFile:396) [1.10.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.10.jar:?]
[17:50:50] [Server thread/INFO]: Starting integrated minecraft server version 1.10
[17:50:50] [Server thread/INFO]: Generating keypair
[17:50:52] [Server thread/INFO]: Preparing start region for level 0
[17:50:53] [Server thread/INFO]: Preparing spawn area: 4%
[17:50:54] [Server thread/INFO]: Preparing spawn area: 6%
[17:50:55] [Server thread/INFO]: Preparing spawn area: 10%
[17:50:56] [Server thread/INFO]: Preparing spawn area: 14%
[17:50:57] [Server thread/INFO]: Preparing spawn area: 17%
[17:50:58] [Server thread/INFO]: Preparing spawn area: 22%
[17:50:59] [Server thread/INFO]: Preparing spawn area: 27%
[17:51:00] [Server thread/INFO]: Preparing spawn area: 31%
[17:51:01] [Server thread/INFO]: Preparing spawn area: 36%
[17:51:02] [Server thread/INFO]: Preparing spawn area: 40%
[17:51:03] [Server thread/INFO]: Preparing spawn area: 43%
[17:51:04] [Server thread/INFO]: Preparing spawn area: 48%
[17:51:05] [Server thread/INFO]: Preparing spawn area: 53%
[17:51:06] [Server thread/INFO]: Preparing spawn area: 58%
[17:51:07] [Server thread/INFO]: Preparing spawn area: 61%
[17:51:08] [Server thread/INFO]: Preparing spawn area: 66%
[17:51:09] [Server thread/INFO]: Preparing spawn area: 70%
[17:51:10] [Server thread/INFO]: Preparing spawn area: 74%
[17:51:11] [Server thread/INFO]: Preparing spawn area: 78%
[17:51:12] [Server thread/INFO]: Preparing spawn area: 82%
[17:51:13] [Server thread/INFO]: Preparing spawn area: 86%
[17:51:14] [Server thread/INFO]: Preparing spawn area: 89%
[17:51:15] [Server thread/INFO]: Preparing spawn area: 94%
[17:51:16] [Server thread/INFO]: Preparing spawn area: 97%
[17:51:17] [Server thread/INFO]: Changing view distance to 2, from 10
[17:51:20] [Server thread/INFO]: StarStruckNebula[local:E:db6fcef1] logged in with entity id 603 at (-107.5, 72.0, 250.5)
[17:51:20] [Server thread/INFO]: StarStruckNebula joined the game
[17:51:27] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 9970ms behind, skipping 199 tick(s)