i have been trying to change the language multiple times, but the game keeps on crashing. I kept on clicking on the link that Arisa sent me but when i click on the link, it says it was not found. so i cant add the crash log. here is the crash log: 

— Minecraft Crash Report ------- Minecraft Crash Report ----// This doesn't make any sense!
Time: 12/10/18 10:54 PMDescription: Rendering screen
java.lang.NoClassDefFoundError: net/minecraft/client/renderer/system/GlStateManager at com.mojang.realmsclient.RealmsMainScreen.drawRealmsLogo(RealmsMainScreen.java:880) at com.mojang.realmsclient.RealmsMainScreen.render(RealmsMainScreen.java:816) at crh.a(SourceFile:102) at dcm.a(SourceFile:794) at cof.d(SourceFile:851) at cof.b(SourceFile:390) at net.minecraft.client.main.Main.main(SourceFile:154)Caused by: java.lang.ClassNotFoundException: net.minecraft.client.renderer.system.GlStateManager at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 7 more

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Client threadStacktrace: at com.mojang.realmsclient.RealmsMainScreen.drawRealmsLogo(RealmsMainScreen.java:880) at com.mojang.realmsclient.RealmsMainScreen.render(RealmsMainScreen.java:816) at crh.a(SourceFile:102)
– Screen render details --Details: Screen name: crh Mouse location: Scaled: (236, 183). Absolute: (708.000000, 550.000000) Screen size: Scaled: (480, 300). Absolute: (1440, 900). Scale factor of 3.000000Stacktrace: at dcm.a(SourceFile:794) at cof.d(SourceFile:851) at cof.b(SourceFile:390) at net.minecraft.client.main.Main.main(SourceFile:154)
– System Details --Details: Minecraft Version: 18w49a Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1866599944 bytes (1780 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 18w49a LWJGL: 3.1.6 build 14 OpenGL: Intel(R) HD Graphics 4400 GL version 4.3.0 - Build 20.19.15.5058, Intel 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: Yes Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Packs:  Current Language: Bosanski (Bosna i Hercegovina) CPU: 4x Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz I think this is it.