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Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 25-04-2020 17:19
Description: Rendering item

java.lang.NullPointerException: Rendering item
at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:57)
at zk.a(SourceFile:80)
at zk.a(SourceFile:140)
at bxi.b(SourceFile:124)
at dqh.a(SourceFile:76)
at dvz.a(SourceFile:113)
at dvz.a(SourceFile:223)
at dvz.a(SourceFile:247)
at dci.a(SourceFile:1103)
at dci.b(SourceFile:542)
at dci.a(SourceFile:183)
at dqn.a(SourceFile:585)
at dbn.d(SourceFile:989)
at dbn.d(SourceFile:619)
at net.minecraft.client.main.Main.main(SourceFile:204)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at info.mineshafter.GameStarter.main(GameStarter.java:61)

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

– Head –
Thread: Render thread
Stacktrace:
at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:57)
at zk.a(SourceFile:80)
at zk.a(SourceFile:140)
at bxi.b(SourceFile:124)
at dqh.a(SourceFile:76)
at dvz.a(SourceFile:113)
at dvz.a(SourceFile:223)

– Item being rendered –
Details:
Item Type: player_head
Item Damage: 0
Item NBT: {SkullOwner:"Copper"}
Item Foil: false
Stacktrace:
at dvz.a(SourceFile:247)
at dci.a(SourceFile:1103)
at dci.b(SourceFile:542)
at dci.a(SourceFile:183)

– Affected level –
Details:
All players: 1 total; [dqb['digogmp'/73, l='MpServer', x=151.27, y=50.00, z=-336.37]]
Chunk stats: Client Chunk Cache: 841, 192
Level dimension: minecraft:overworld
Level name: MpServer
Level seed: -8576308371042139178
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options: {}
Level spawn location: World: (32,63,-171), Chunk: (at 0,3,5 in 2,-11; contains blocks 32,0,-176 to 47,255,-161), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Level time: 1972575 game time, 144000000 day time
Known server brands:
Level was modded: false
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
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at dno.a(SourceFile:450)
at dbn.c(SourceFile:1921)
at dbn.d(SourceFile:634)
at net.minecraft.client.main.Main.main(SourceFile:204)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at info.mineshafter.GameStarter.main(GameStarter.java:61)

– System Details –
Details:
Minecraft Version: 1.15.2
Minecraft Version ID: 1.15.2
Operating System: Mac OS X (x86_64) version 10.15.4
Java Version: 1.8.0_241, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 203114808 bytes (193 MB) / 554713088 bytes (529 MB) up to 1060372480 bytes (1011 MB)
CPUs: 4
JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
Launched Version: 1.15.2
Backend library: LWJGL version 3.2.1 build 12
Backend API: Intel(R) UHD Graphics 617 GL version 2.1 INTEL-14.5.22, Intel Inc.
GL Caps: Using framebuffer using ARB_framebuffer_object extension
Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: Português (Portugal)
CPU: 4x Intel(R) Core(TM) i5-8210Y CPU @ 1.60GHz