I had my server crash last night and console said to report the error here with the crash report. The console errors are here below.

 

[08:41:36] [ERROR] The server has stopped responding!

[08:41:36] [ERROR] Please report this to http://www.spigotmc.org/

[08:41:36] [ERROR] Be sure to include ALL relevant console errors and Minecraft crash reports

[08:41:36] [ERROR] Spigot version: git-Spigot-7862817-bd30843 (MC: 1.12.2)

[08:41:36] [ERROR] ------------------------------

[08:41:36] [ERROR] Server thread dump (Look for plugins here before reporting to Spigot!):

[08:42:38] [ERROR] ------------------------------

[08:42:38] [ERROR] Current Thread: Server thread

[08:42:38] [ERROR] PID: 17 | Suspended: false | Native: false | State: RUNNABLE

[08:42:38] [ERROR] Stack:

[08:42:38] [ERROR] java.util.zip.Deflater.deflateBytes(Native Method)

[08:42:38] [ERROR] java.util.zip.Deflater.deflate(Deflater.java:444)

[08:42:45] [ERROR] java.util.zip.Deflater.deflate(Deflater.java:366)

[08:42:45] [ERROR] java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:251)

[08:42:45] [ERROR] java.util.zip.DeflaterOutputStream.write(DeflaterOutputStream.java:211)

[08:42:45] [ERROR] java.util.zip.GZIPOutputStream.write(GZIPOutputStream.java:145)

[08:42:45] [ERROR] java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)

[08:42:45] [ERROR] java.io.BufferedOutputStream.write(BufferedOutputStream.java:126)

[08:42:45] [ERROR] java.io.DataOutputStream.write(DataOutputStream.java:107)

[08:42:56] [ERROR] java.io.DataOutputStream.writeUTF(DataOutputStream.java:401)

[08:42:56] [ERROR] java.io.DataOutputStream.writeUTF(DataOutputStream.java:323)

[08:42:56] [ERROR] net.minecraft.server.v1_12_R1.NBTTagCompound.a(SourceFile:423)

[08:42:56] [ERROR] net.minecraft.server.v1_12_R1.NBTTagCompound.write(SourceFile:60)

[08:42:56] [ERROR] net.minecraft.server.v1_12_R1.NBTTagList.write(SourceFile:45)

[08:42:56] [ERROR] net.minecraft.server.v1_12_R1.NBTTagCompound.a(SourceFile:425)

[08:43:07] [ERROR] net.minecraft.server.v1_12_R1.NBTTagCompound.write(SourceFile:60)

[08:43:07] [ERROR] net.minecraft.server.v1_12_R1.NBTTagCompound.a(SourceFile:425)

[08:43:07] [ERROR] net.minecraft.server.v1_12_R1.NBTTagCompound.write(SourceFile:60)

[08:43:07] [ERROR] net.minecraft.server.v1_12_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:70)

[08:43:07] [ERROR] net.minecraft.server.v1_12_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:63)

[08:43:18] [ERROR] net.minecraft.server.v1_12_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:35)

[08:43:18] [ERROR] net.minecraft.server.v1_12_R1.PersistentCollection.a(PersistentCollection.java:100)

[08:43:24] [ERROR] net.minecraft.server.v1_12_R1.PersistentCollection.a(PersistentCollection.java:82)

[08:43:24] [ERROR] net.minecraft.server.v1_12_R1.WorldServer.a(WorldServer.java:1105)

[08:43:35] [ERROR] net.minecraft.server.v1_12_R1.WorldServer.save(WorldServer.java:1047)

[08:43:35] [ERROR] org.bukkit.craftbukkit.v1_12_R1.CraftWorld.save(CraftWorld.java:755)

[08:43:35] [ERROR] net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:704)

[08:43:35] [ERROR] net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577)

[08:43:35] [ERROR] java.lang.Thread.run(Thread.java:748)

[08:43:35] [ERROR] ------------------------------

[08:43:35] [ERROR] Entire Thread Dump:

[08:46:36] [Prisma] Saving server...

[08:46:44] [ERROR] ------------------------------

[08:47:21] [WARN] Exception in thread "Timer-1"

[08:47:21] [WARN] Exception in thread "MVStore background writer nio:/data/plugins/LiteBans/litebans.mv.db"

[08:47:21] [WARN] java.lang.OutOfMemoryError: Java heap space

[08:47:21] [WARN] at java.util.HashMap$Values.iterator(HashMap.java:967)

[08:47:21] [WARN] at com.sk89q.worldedit.session.SessionManager$SessionTracker.run(SessionManager.java:307)

[08:47:21] [WARN] at java.util.TimerThread.mainLoop(Timer.java:555)

[08:47:21] [WARN] at java.util.TimerThread.run(Timer.java:505)

[08:47:21] [ERROR] Encountered an unexpected exception

[08:47:21] java.lang.OutOfMemoryError: Java heap space

[08:47:21] [WARN] Exception in thread "Spigot Watchdog Thread"

[08:47:21] [WARN] java.lang.OutOfMemoryError: Java heap space

[08:47:21] [WARN] at java.util.concurrent.ConcurrentHashMap$ValuesView.iterator(ConcurrentHashMap.java:4683)

[08:47:21] [WARN] at org.h2.mvstore.MVStore.hasUnsavedChanges(MVStore.java:1569)

[08:47:21] [WARN] at org.h2.mvstore.MVStore.writeInBackground(MVStore.java:2487)

[08:47:21] [WARN] at org.h2.mvstore.MVStore$BackgroundWriterThread.run(MVStore.java:2720)

[08:47:21] [WARN] java.lang.OutOfMemoryError: Java heap space

[08:47:21] [ERROR] This crash report has been saved to: /data/./crash-reports/crash-2018-01-15_13.47.21-server.txt