minecraftがワールド読み込み中にクラッシュしてしまいます

もうタイトルのまんまです。worldを選択して数分したらクラッシュしてしまいます。どうすれば普通に遊べるでしょうか。↓こちらがクラッシュレポートになります
WARNING: coremods are present:
llibrary (llibrary-core-1.0.11-1.12.2.jar)
Contact their authors BEFORE contacting forge

// There are four lights!

Time: 4/21/20 4:40 PM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
at com.knoxhack.densemetals.world.WorldGen.runGenerator(WorldGen.java:78)
at com.knoxhack.densemetals.world.WorldGen.generate(WorldGen.java:112)
at net.minecraftforge.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:167)
at net.minecraft.world.chunk.Chunk.func_186034_a(Chunk.java:1020)
at net.minecraft.world.chunk.Chunk.func_186030_a(Chunk.java:999)
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:157)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:344)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:142)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:156)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486)
at java.lang.Thread.run(Thread.java:745)

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

-- System Details --
Details:
Minecraft Version: 1.12.2
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: 698347568 bytes (665 MB) / 3140747264 bytes (2995 MB) up to 3140747264 bytes (2995 MB)
JVM Flags: 26 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3G -Xms3G -Xmn768m -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+UseNUMA -XX:+CMSParallelRemarkEnabled -XX:MaxTenuringThreshold=15 -XX:MaxGCPauseMillis=30 -XX:GCPauseIntervalMillis=150 -XX:+UseAdaptiveGCBoundary -XX:-UseGCOverheadLimit -XX:+UseBiasedLocking -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=15 -XX:+UseFastAccessorMethods -XX:+UseCompressedOops -XX:+OptimizeStringConcat -XX:+AggressiveOpts -XX:ReservedCodeCacheSize=2048m -XX:+UseCodeCacheFlushing -XX:SoftRefLRUPolicyMSPerMB=10000 -XX:ParallelGCThreads=10
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
FML: MCP 9.42 Powered by Forge 14.23.5.2847 33 mods loaded, 33 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

No.1 回答者： バルディだお 回答日時： 2020/04/24 12:01

再起動とか、再インストールすれば？