---- Minecraft Crash Report ----
// There are four lights!

Time: 29/08/16 15:12
Description: Rendering screen

java.lang.IllegalArgumentException: bad Base64 input character at 895: 0 (decimal)
at io.netty.handler.codec.base64.Base64.decode(Base64.java:247)
at io.netty.handler.codec.base64.Base64.decode(Base64.java:197)
at io.netty.handler.codec.base64.Base64.decode(Base64.java:188)
at bgr.c(SourceFile:212)
at bgr.a(SourceFile:145)
at bdi.a(SourceFile:25)
at bdn.b(SourceFile:411)
at bdn.a(SourceFile:210)
at bgo.a(SourceFile:295)
at bnd.a(SourceFile:1056)
at bcc.av(SourceFile:985)
at bcc.a(SourceFile:392)
at net.minecraft.client.main.Main.main(SourceFile:124)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Stacktrace:
at io.netty.handler.codec.base64.Base64.decode(Base64.java:247)
at io.netty.handler.codec.base64.Base64.decode(Base64.java:197)
at io.netty.handler.codec.base64.Base64.decode(Base64.java:188)
at bgr.c(SourceFile:212)
at bgr.a(SourceFile:145)
at bdi.a(SourceFile:25)
at bdn.b(SourceFile:411)
at bdn.a(SourceFile:210)
at bgo.a(SourceFile:295)

– Screen render details –
Details:
Screen name: bgo
Mouse location: Scaled: (203, 143). Absolute: (406, 193)
Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2
Stacktrace:
at bnd.a(SourceFile:1056)
at bcc.av(SourceFile:985)
at bcc.a(SourceFile:392)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 1.9.1
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 73363096 bytes (69 MB) / 189431808 bytes (180 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.9.1
LWJGL: 2.9.4
OpenGL: ATI Radeon HD 4850 GL version 3.3.11672 Compatibility Profile Context, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: Español (Argentina)
Profiler Position: N/A (disabled)
CPU: 4x AMD Phenom(tm) II X4 B50 Processor