Minecraft crash no. 22

---- Minecraft Crash Report ----
// Shall we play a game?

Time: 6/7/20 6:20 PM
Description: Ticking memory connection

java.lang.RuntimeException: Why did the advancements not load yet?!
	at net.minecraftforge.common.AdvancementLoadFix.loadVisibility(AdvancementLoadFix.java:51) ~[?:?] {re:classloading}
	at net.minecraft.advancements.PlayerAdvancements.load(PlayerAdvancements.java:157) ~[?:?] {re:classloading}
	at net.minecraft.advancements.PlayerAdvancements.<init>(PlayerAdvancements.java:65) ~[?:?] {re:classloading}
	at net.minecraft.server.management.PlayerList.getPlayerAdvancements(PlayerList.java:806) ~[?:?] {re:classloading}
	at net.minecraft.entity.player.ServerPlayerEntity.<init>(ServerPlayerEntity.java:167) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.management.PlayerList.createPlayerForUser(PlayerList.java:395) ~[?:?] {re:classloading}
	at net.minecraft.network.login.ServerLoginNetHandler.tryAcceptPlayer(ServerLoginNetHandler.java:120) ~[?:?] {re:classloading}
	at net.minecraft.network.login.ServerLoginNetHandler.tick(ServerLoginNetHandler.java:64) ~[?:?] {re:classloading}
	at net.minecraft.network.NetworkManager.tick(NetworkManager.java:246) ~[?:?] {re:classloading}
	at net.minecraft.network.NetworkSystem.tick(NetworkSystem.java:152) ~[?:?] {re:classloading}
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:903) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:821) ~[?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662) [?:?] {re:classloading,pl:accesstransformer:B}
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] {}


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

-- Head --
Thread: Server thread
Stacktrace:
	at net.minecraftforge.common.AdvancementLoadFix.loadVisibility(AdvancementLoadFix.java:51)
	at net.minecraft.advancements.PlayerAdvancements.load(PlayerAdvancements.java:157)
	at net.minecraft.advancements.PlayerAdvancements.<init>(PlayerAdvancements.java:65)
	at net.minecraft.server.management.PlayerList.getPlayerAdvancements(PlayerList.java:806)
	at net.minecraft.entity.player.ServerPlayerEntity.<init>(ServerPlayerEntity.java:167)
	at net.minecraft.server.management.PlayerList.createPlayerForUser(PlayerList.java:395)
	at net.minecraft.network.login.ServerLoginNetHandler.tryAcceptPlayer(ServerLoginNetHandler.java:120)
	at net.minecraft.network.login.ServerLoginNetHandler.tick(ServerLoginNetHandler.java:64)
	at net.minecraft.network.NetworkManager.tick(NetworkManager.java:246)

-- Ticking connection --
Details:
	Connection: net.minecraft.network.NetworkManager@5f911bbe
Stacktrace:
	at net.minecraft.network.NetworkSystem.tick(NetworkSystem.java:152)
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:903)
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:821)
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:120)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662)
	at java.lang.Thread.run(Thread.java:748)

-- System Details --
Details:
	Minecraft Version: 1.15.2
	Minecraft Version ID: 1.15.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_201, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 299105480 bytes (285 MB) / 860356608 bytes (820 MB) up to 1420820480 bytes (1355 MB)
	CPUs: 3
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 5.1.0+69+master.79f13f7
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services:
		/eventbus-2.2.0-service.jar eventbus PLUGINSERVICE
		/forge-1.15.2-31.2.8_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE
		/forge-1.15.2-31.2.8_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE
		/accesstransformers-2.1.1-shadowed.jar accesstransformer PLUGINSERVICE
		/forge-1.15.2-31.2.8_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE
		/forge-1.15.2-31.2.8_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE
		/forge-1.15.2-31.2.8_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE
	FML: 31.2
	Forge: net.minecraftforge:31.2.8
	FML Language Providers:
		javafml@31.2
		minecraft@1
	Mod List:
		client-extra.jar Minecraft {minecraft@1.15.2 DONE}
		main HystelMC {hm@1.2.1 DONE}
		forge-1.15.2-31.2.8_mapped_snapshot_20200514-1.15.1-recomp.jar Forge {forge@31.2.8 DONE}
	Player Count: 0 / 8; []
	Data Packs: vanilla, mod:hm, mod:forge (incompatible)
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'forge'