Hello, today my server was working as well, but suddenly it closed. Here is the log. [ERROR] Encountered an unexpected exception net.minecraft.server.v1_8_R3.ReportedException: Exception ticking world entities at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:797) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at java.lang.Thread.run(Thread.java:813) [?:1.8.0_212] Caused by: java.util.NoSuchElementException at org.bukkit.craftbukkit.v1_8_R3.util.UnsafeList$Itr.next(UnsafeList.java:248) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at org.spigotmc.ActivationRange.activateChunkEntities(ActivationRange.java:148) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at org.spigotmc.ActivationRange.activateEntities(ActivationRange.java:131) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.World.tickEntities(World.java:1400) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.WorldServer.tickEntities(WorldServer.java:597) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:786) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] ... 4 more [ERROR] Cause of unexpected exception was java.util.NoSuchElementException at org.bukkit.craftbukkit.v1_8_R3.util.UnsafeList$Itr.next(UnsafeList.java:248) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at org.spigotmc.ActivationRange.activateChunkEntities(ActivationRange.java:148) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at org.spigotmc.ActivationRange.activateEntities(ActivationRange.java:131) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.World.tickEntities(World.java:1400) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.WorldServer.tickEntities(WorldServer.java:597) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:786) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52] at java.lang.Thread.run(Thread.java:813) [?:1.8.0_212] [ERROR] This crash report has been saved to: /home/gs-41842/./crash-reports/crash-2020-01-09_11.34.05-server.txt [INFO] Stopping server
The people on this forum are going to harass you for using 1.8.8; they want you to use the latest stable version. Besides that, try disabling the "entity activation range" feature in the config. According to the error, this appears to be a bug. I may be wrong, but that's what it looks like to me given this very little information.
This is the part of "Entity activation range" in my spigot.yml: entity-activation-range: animals: 32 monsters: 32 misc: 16
