---- Minecraft Crash Report ----
// Don't do that.

Time: 4/25/18 11:23 PM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at aze.<init>(SourceFile:105)
	at aym.c(SourceFile:77)
	at oo.n(SourceFile:741)
	at oo.<init>(SourceFile:130)
	at WorldServerOF.<init>(WorldServerOF.java:25)
	at chd.a(IntegratedServer.java:162)
	at chd.j(IntegratedServer.java:209)
	at net.minecraft.server.MinecraftServer.run(SourceFile:434)
	at java.lang.Thread.run(Thread.java:745)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
	Minecraft Version: 1.12.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 174710720 bytes (166 MB) / 268435456 bytes (256 MB) up to 1073741824 bytes (1024 MB)
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Very likely; Jar signature invalidated
	OptiFine Version: OptiFine_1.12.2_HD_U_D1
	OptiFine Build: 20180323-135452
	Render Distance Chunks: 18
	Mipmaps: 4
	Anisotropic Filtering: 1
	Antialiasing: 0
	Multitexture: false
	Shaders: null
	OpenGlVersion: 4.6.0 NVIDIA 391.35
	OpenGlRenderer: GeForce GTX 1050 Ti/PCIe/SSE2
	OpenGlVendor: NVIDIA Corporation
	CpuCount: 4