Having custom heads can crash the game

I was making a map then I got a bug, I was using this command /give @a Player_skull{SkullOwner:ToiletPlayzMC}. Then it just crashed. The log said this.
- Couldn't look up profile properties for com.mojang.authlib.GameProfile@54c812a1[id=5a863504-9b0d-3bca-ad4e-42bc9fd8a4b8,name=toiletplayzmc,properties={},legacy=false] com.mojang.authlib.exceptions.AuthenticationException: The client has sent too many requests within a certain amount of time at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:98) at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:186) at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:179) at cde.b(SourceFile:133) at eac.a(SourceFile:76) at efw.a(SourceFile:111) at efw.a(SourceFile:215) at efw.a(SourceFile:239) at dlo.a(SourceFile:1114) at dlo.a(SourceFile:551) at dlo.a(SourceFile:191) at eai.a(SourceFile:585) at dkr.e(SourceFile:1007) at dkr.d(SourceFile:630) at net.minecraft.client.main.Main.main(SourceFile:204)