This error appears after trying to enter a world. We bought a full version of minecraft but can't use it. Please help, thanks!

Completely ignored arguments: [--nativeLauncherVersion, 301]
[12:03:15] [Client thread/INFO]: Setting user: ercachcoco
[12:03:16] [Client thread/INFO]: LWJGL Version: 2.9.4
[12:03:18] [Client thread/INFO]: Reloading ResourceManager: Default
[12:03:19] [Sound Library Loader/INFO]: Starting up SoundSystem...
[12:03:19] [Thread-5/INFO]: Initializing LWJGL OpenAL
[12:03:19] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[12:03:20] [Thread-5/INFO]: OpenAL initialized.
[12:03:20] [Sound Library Loader/INFO]: Sound engine started
[12:03:21] [Client thread/INFO]: Created: 1024x512 textures-atlas
[12:03:41] [Server thread/INFO]: Starting integrated minecraft server version 1.9.4
[12:03:41] [Server thread/INFO]: Generating keypair
[12:03:43] [Server thread/INFO]: Preparing start region for level 0
[12:03:44] [Server thread/INFO]: Preparing spawn area: 5%
[12:03:45] [Server thread/INFO]: Preparing spawn area: 10%
[12:03:46] [Server thread/INFO]: Preparing spawn area: 16%
[12:03:47] [Server thread/INFO]: Preparing spawn area: 26%
[12:03:48] [Server thread/INFO]: Preparing spawn area: 35%
[12:03:49] [Server thread/INFO]: Preparing spawn area: 44%
[12:03:50] [Server thread/INFO]: Preparing spawn area: 52%
[12:03:51] [Server thread/INFO]: Preparing spawn area: 60%
[12:03:52] [Server thread/INFO]: Preparing spawn area: 70%
[12:03:53] [Server thread/INFO]: Preparing spawn area: 79%
[12:03:54] [Server thread/INFO]: Preparing spawn area: 91%
[12:03:57] [Server thread/INFO]: ercachcoco[local:E:a6936430] logged in with entity id 1847 at (-241.5, 65.0, 126.5)
[12:03:57] [Server thread/INFO]: ercachcoco joined the game
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1. A fatal error has been detected by the Java Runtime Environment:
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2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffc1b3c628c, pid=97320, tid=96316
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3. JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
4. Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
5. Problematic frame:
6. C [ig75icd64.dll+0x55628c]
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7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
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8. An error report file with more information is saved as:
9. C:\Users\caEr\AppData\Roaming\.minecraft\hs_err_pid97320.log
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10. If you would like to submit a bug report, please visit:
11. http://bugreport.sun.com/bugreport/crash.jsp
12. The crash happened outside the Java Virtual Machine in native code.
13. See problematic frame for where to report the bug.
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    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