Crash on joining server.

Getting a crash when loading up either modded minecraft or when I load vanilla and attempt joining a server or creating singleplayer world

Minecraft Crash Report -------- Minecraft Crash Report ----// But it works on my machine.
Time: 4/13/19 8:59 PMDescription: Unexpected error
java.lang.NullPointerException: Unexpected error at bsa.n(SourceFile:296) at bsa.e(SourceFile:275) at bib.t(SourceFile:1602) at bib.az(SourceFile:1000) at bib.a(SourceFile:419) at net.minecraft.client.main.Main.main(SourceFile:123) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196) at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231) at org.multimc.EntryPoint.listen(EntryPoint.java:143) at org.multimc.EntryPoint.main(EntryPoint.java:34)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Client threadStacktrace: at bsa.n(SourceFile:296) at bsa.e(SourceFile:275)
– Affected level --Details: Level name: MpServer All players: 0 total; [] Chunk stats: MultiplayerChunkCache: 2, 2 Level seed: 0 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options:  Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 0 game time, 0 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Forced entities: 0 total; [] Retry entities: 0 total; [] Server brand: _ERROR NullPointerException: null Server type: Non-integrated multiplayer serverStacktrace: at bsb.a(SourceFile:366) at bib.b(SourceFile:2587) at bib.a(SourceFile:433) at net.minecraft.client.main.Main.main(SourceFile:123) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196) at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231) at org.multimc.EntryPoint.listen(EntryPoint.java:143) at org.multimc.EntryPoint.main(EntryPoint.java:34)
– System Details --Details: Minecraft Version: 1.12.2 Operating System: Windows Vista (x86) version 6.0 Java Version: 1.8.0_201, Oracle Corporation Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation Memory: 928750264 bytes (885 MB) / 1038024704 bytes (989 MB) up to 1425211392 bytes (1359 MB) JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms1024m -Xmx1405m IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 Launched Version: MultiMC5 LWJGL: 2.9.4 OpenGL: ATI Mobility Radeon HD 3400 Series GL version 2.1.7415 Release, ATI Technologies Inc. GL Caps: Using GL 1.3 multitexturing.Using GL 1.3 texture combiners.Using framebuffer objects because EXT_framebuffer_object 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: English (US) Profiler Position: N/A (disabled) CPU: 2x Intel(R) Core(TM)2 Duo CPU T5850 @ 2.16GHz

here have the log since it wont let me upload it