---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 20.06.18 18:51
Description: Exception in server tick loop

i: Non [a-z0-9_.-] character in namespace of location: #minecraft:logs
	at on.<init>(SourceFile:35)
	at on.<init>(SourceFile:43)
	at ayu.a(SourceFile:166)
	at ayu.b(SourceFile:148)
	at ayu$$Lambda$1315/1900488066.apply(Unknown Source)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.ArrayList$Itr.forEachRemaining(ArrayList.java:891)
	at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:576)
	at java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:255)
	at java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:438)
	at ayu.<init>(SourceFile:41)
	at ayu.a(SourceFile:111)
	at ayu.a(SourceFile:148)
	at azc.c(SourceFile:229)
	at azc.b(SourceFile:24)
	at azc$a.b(SourceFile:253)
	at azc$a.a(SourceFile:248)
	at aza.a(SourceFile:49)
	at ayy.a(SourceFile:52)
	at ur.c(SourceFile:123)
	at ur.a(SourceFile:106)
	at net.minecraft.server.MinecraftServer.a(SourceFile:1369)
	at net.minecraft.server.MinecraftServer.a(SourceFile:356)
	at dir.a(SourceFile:82)
	at dir.d(SourceFile:132)
	at net.minecraft.server.MinecraftServer.run(SourceFile:501)
	at java.lang.Thread.run(Thread.java:745)


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

-- System Details --
Details:
	Minecraft Version: 1.13-pre2
	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: 142592448 bytes (135 MB) / 313827328 bytes (299 MB) up to 5355339776 bytes (5107 MB)
	JVM Flags: 7 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx5G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Data Packs: vanilla, file/Astrea (incompatible)
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.