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I cannot open and play minecraft. After i select my level, the game will crash and show this message

Completely ignored arguments: [--nativeLauncherVersion, 307]
[13:05:09] [Client thread/INFO]: Setting user: sinlapse13
[13:05:10] [Client thread/WARN]: Skipping bad option: lastServer:
[13:05:10] [Client thread/INFO]: LWJGL Version: 2.9.4
[13:05:11] [Client thread/INFO]: Reloading ResourceManager: Default
[13:05:24] [Sound Library Loader/INFO]: Starting up SoundSystem...
[13:05:24] [Thread-5/INFO]: Initializing LWJGL OpenAL
[13:05:24] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[13:05:24] [Thread-5/INFO]: OpenAL initialized.
[13:05:24] [Sound Library Loader/INFO]: Sound engine started
[13:05:26] [Client thread/INFO]: Created: 1024x512 textures-atlas
[13:05:29] [Client thread/ERROR]: Exception reading C:\Users\Matthew\AppData\Roaming\.minecraft\saves\New World1\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) ~[1.10.2.jar:?]
at azz.a(SourceFile:82) [1.10.2.jar:?]
at azz.c(SourceFile:66) [1.10.2.jar:?]
at azw.b(SourceFile:57) [1.10.2.jar:?]
at big.e(SourceFile:35) [1.10.2.jar:?]
at big.<init>(SourceFile:28) [1.10.2.jar:?]
at bie.b(SourceFile:43) [1.10.2.jar:?]
at bft.a(SourceFile:372) [1.10.2.jar:?]
at bcx.a(SourceFile:900) [1.10.2.jar:?]
at bga.a(SourceFile:237) [1.10.2.jar:?]
at bft.a(SourceFile:346) [1.10.2.jar:?]
at bga.a(SourceFile:498) [1.10.2.jar:?]
at bft.k(SourceFile:409) [1.10.2.jar:?]
at bft.p(SourceFile:386) [1.10.2.jar:?]
at bcx.t(SourceFile:1586) [1.10.2.jar:?]
at bcx.av(SourceFile:968) [1.10.2.jar:?]
at bcx.a(SourceFile:396) [1.10.2.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:124) [1.10.2.jar:?]
[13:05:51] [Server thread/INFO]: Starting integrated minecraft server version 1.10.2
[13:05:51] [Server thread/INFO]: Generating keypair
[13:05:51] [Server thread/INFO]: Preparing start region for level 0
[13:05:52] [Server thread/INFO]: Preparing spawn area: 33%
[13:05:56] [Server thread/INFO]: Preparing spawn area: 33%
[13:05:57] [Server thread/INFO]: Preparing spawn area: 93%
[13:05:57] [Server thread/INFO]: Changing view distance to 12, from 10
[13:05:58] [Server thread/INFO]: sinlapse13[local:E:34ac5697] logged in with entity id 1324 at (3.300000011920923, 67.0, 65.4227753061032)
[13:05:58] [Server thread/INFO]: sinlapse13 joined the game
[13:06:04] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5928ms behind, skipping 118 tick(s)
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000019cab935, pid=7196, tid=1980
#
# JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [ig7icd64.dll+0x6b935]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\Matthew\AppData\Roaming\.minecraft\hs_err_pid7196.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

I don't know what any of this means. Any help is appreciated.