Crashing When I Load Old Version Of Minecraft

Im Having trouble loading anything before 1.8.0. i keep crashing and this is what it tells me each time. im wondering if you guys at Mojang would have any idea how to fix this.

Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Failed to start game
This error has been saved to C:\Users\Eric\AppData\Roaming\.minecraft\crash-reports\crash-2017-04-15_16.37.33-client.txt for your convenience. Please include a copy of this file if you report this crash to anyone.

— BEGIN ERROR REPORT 590da973 --------
Generated 15/04/17 4:37 PM

• Minecraft Version: 1.3.2
• Operating System: Windows 8.1 (amd64) version 6.3
• Java Version: 1.8.0_25, Oracle Corporation
• Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
• Memory: 54121232 bytes (51 MB) / 127139840 bytes (121 MB) up to 1060372480 bytes (1011 MB)
• JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
• LWJGL: 2.9.0
• OpenGL: AMD Radeon(TM) R3 Graphics GL version 4.3.12682 Compatibility Profile Context 13.302.1101.1004, ATI Technologies Inc.
• Is Modded: Very likely
• Type: Client
• Texture Pack: Default
• Profiler Position: N/A (disabled)

java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:78)
at java.io.InputStreamReader.<init>(InputStreamReader.java:97)
at ak.a(SourceFile:56)
at ak.a(SourceFile:91)
at net.minecraft.client.Minecraft.a(SourceFile:250)
at net.minecraft.client.Minecraft.run(SourceFile:516)
at java.lang.Thread.run(Thread.java:745)
— END ERROR REPORT 8d75dfc0 ----------