Server crashes randomly.

(Couldn't attach file) 

---- Minecraft Crash Report -------- Minecraft Crash Report ----// You should try our sister game, Minceraft!
Time: 7/16/18 3:13 PMDescription: Exception ticking world
java.lang.IllegalArgumentException: bound must be positive at java.util.Random.nextInt(Random.java:388) at axz.a(SourceFile:196) at axz.a(SourceFile:98) at tc.i_(SourceFile:196) at net.minecraft.server.MinecraftServer.w(SourceFile:690) at sn.w(SourceFile:357) at net.minecraft.server.MinecraftServer.v(SourceFile:623) at net.minecraft.server.MinecraftServer.run(SourceFile:526) at java.lang.Thread.run(Thread.java:748)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Server threadStacktrace: at java.util.Random.nextInt(Random.java:388) at axz.a(SourceFile:196) at axz.a(SourceFile:98) at tc.i_(SourceFile:196)
– Affected level --Details: Level name: world All players: 1 total; [te['ErinTheHedgehog_'/68461, l='world', x=48.64, y=75.54, z=484.40]] Chunk stats: ServerChunkCache: 441 Drop: 0 Level seed: -4620602850274805106 Level generator: ID 00 - default, ver 1. Features enabled: false Level generator options: {} Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 0 game time, 0 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: falseStacktrace: at net.minecraft.server.MinecraftServer.w(SourceFile:690) at sn.w(SourceFile:357) at net.minecraft.server.MinecraftServer.v(SourceFile:623) at net.minecraft.server.MinecraftServer.run(SourceFile:526) at java.lang.Thread.run(Thread.java:748)
– System Details --Details: Minecraft Version: 1.13-pre9 Operating System: Linux (amd64) version 4.9.33-mod-std-ipv6-64 Java Version: 1.8.0_144, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 415477960 bytes (396 MB) / 1091567616 bytes (1041 MB) up to 3817865216 bytes (3641 MB) JVM Flags: 3 total; -Xmx4096M -Xms1024M -XX:MaxPermSize=256M Profiler Position: N/A (disabled) Player Count: 4 / 100; [te['darknight1694'/119, l='world', x=-965.70, y=16.00, z=-176.22], te['That_Unknown_Guy'/3913, l='world', x=54.50, y=77.37, z=513.50], te['CharaDreemurr00'/9468, l='world', x=97.15, y=254.80, z=506.38], te['ErinTheHedgehog_'/68461, l='world', x=48.64, y=75.54, z=484.40]] Data Packs: vanilla, file/bac_advancements Is Modded: Unknown (can't tell) Type: Dedicated Server (map_server.txt)