This occurred during user login and the server stopped.

[19:01:42] [Spigot Watchdog Thread/ERROR]: ------------------------------
[19:01:42] [Spigot Watchdog Thread/ERROR]: Server thread dump (Look for plugins here before reporting to Spigot!):
[19:01:42] [Spigot Watchdog Thread/ERROR]: ------------------------------
[19:01:42] [Spigot Watchdog Thread/ERROR]: Current Thread: Server thread
[19:01:42] [Spigot Watchdog Thread/ERROR]:      PID: 34 | Suspended: false | Native: false | State: RUNNABLE
[19:01:42] [Spigot Watchdog Thread/ERROR]:      Stack:
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//org.bukkit.craftbukkit.v1_17_R1.entity.CraftLivingEntity.getActivePotionEffects(CraftLivingEntity.java:395)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.effects.EffPotion.execute(EffPotion.java:154)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.lang.Effect.run(Effect.java:50)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:61)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:89)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.lang.Trigger.execute(Trigger.java:56)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.SkriptEventHandler.check(SkriptEventHandler.java:142)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.SkriptEventHandler.access$000(SkriptEventHandler.java:53)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.SkriptEventHandler$PriorityListener.lambda$new$0(SkriptEventHandler.java:71)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              ch.njol.skript.SkriptEventHandler$PriorityListener$$Lambda$7593/0x000000080238a070.execute(Unknown Source)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.network.PlayerConnection.a(PlayerConnection.java:1999)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.network.protocol.game.PacketPlayInEntityAction.a(SourceFile:37)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.network.protocol.game.PacketPlayInEntityAction.a(SourceFile:7)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.network.protocol.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:30)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.network.protocol.PlayerConnectionUtils$$Lambda$8287/0x0000000802a1bd10.run(Unknown Source)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.TickTask.run(SourceFile:18)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.util.thread.IAsyncTaskHandler.executeTask(SourceFile:151)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.util.thread.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.util.thread.IAsyncTaskHandler.executeNext(SourceFile:125)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.MinecraftServer.bf(MinecraftServer.java:1148)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.MinecraftServer.executeNext(MinecraftServer.java:1141)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.util.thread.IAsyncTaskHandler.awaitTasks(SourceFile:134)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.MinecraftServer.sleepForTick(MinecraftServer.java:1125)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1054)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:305)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              app//net.minecraft.server.MinecraftServer$$Lambda$3842/0x00000008013b1aa8.run(Unknown Source)
[19:01:42] [Spigot Watchdog Thread/ERROR]:              [email protected]/java.lang.Thread.run(Thread.java:833)