[11:33:49] [Server thread/INFO]: BingShanaaa issued server command: /back
[11:42:06] [Server thread/INFO]: BingShanaaa hit the ground too hard
[11:42:12] [Server thread/INFO]: BingShanaaa issued server command: /back
[11:44:39] [Server thread/INFO]: BingShanaaa issued server command: /em shop
[11:44:49] [Paper Watchdog Thread/ERROR]: --- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH - git-Paper-23 (MC: 1.14.1) ---
[11:44:49] [Paper Watchdog Thread/ERROR]: The server has not responded for 10 seconds! Creating thread dump
[11:44:49] [Paper Watchdog Thread/ERROR]: ------------------------------
[11:44:49] [Paper Watchdog Thread/ERROR]: Server thread dump (Look for plugins here before reporting to Paper!):
[11:44:49] [Paper Watchdog Thread/ERROR]: ------------------------------
[11:44:49] [Paper Watchdog Thread/ERROR]: Current Thread: Server thread
[11:44:49] [Paper Watchdog Thread/ERROR]: PID: 19 | Suspended: false | Native: true | State: RUNNABLE
[11:44:49] [Paper Watchdog Thread/ERROR]: Stack:
[11:44:49] [Paper Watchdog Thread/ERROR]: java.net.PlainSocketImpl.socketConnect(Native Method)
[11:44:49] [Paper Watchdog Thread/ERROR]: java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
[11:44:49] [Paper Watchdog Thread/ERROR]: java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
[11:44:49] [Paper Watchdog Thread/ERROR]: java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
[11:44:49] [Paper Watchdog Thread/ERROR]: java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
[11:44:49] [Paper Watchdog Thread/ERROR]: java.net.Socket.connect(Socket.java:589)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.NetworkClient.doConnect(NetworkClient.java:175)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:264)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1199)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
[11:44:49] [Paper Watchdog Thread/ERROR]: sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:130)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:66)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:180)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.destroystokyo.paper.profile.PaperMinecraftSessionService.fillGameProfile(PaperMinecraftSessionService.java:37)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:173)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.destroystokyo.paper.profile.PaperMinecraftSessionService.fillProfileProperties(PaperMinecraftSessionService.java:30)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.TileEntitySkull$1.load(TileEntitySkull.java:77)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.TileEntitySkull$1.load(TileEntitySkull.java:44)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3716)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2424)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2298)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2211)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache.get(LocalCache.java:4154)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4158)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:5147)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:5153)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.TileEntitySkull$3.call(TileEntitySkull.java:218)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.TileEntitySkull$3.call(TileEntitySkull.java:215)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.TileEntitySkull.b(TileEntitySkull.java:234)
[11:44:49] [Paper Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_14_R1.inventory.CraftMetaSkull.applyToItem(CraftMetaSkull.java:84)
[11:44:49] [Paper Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack.setItemMeta(CraftItemStack.java:505)
[11:44:49] [Paper Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_14_R1.inventory.CraftItemStack.asNMSCopy(CraftItemStack.java:42)
[11:44:49] [Paper Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_14_R1.inventory.CraftInventory.setItem(CraftInventory.java:99)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.magmaguy.elitemobs.commands.shops.BuyOrSellMenu.constructBuyOrSellMenu(BuyOrSellMenu.java:29)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.magmaguy.elitemobs.commands.shops.ShopHandler.shopInitializer(ShopHandler.java:37)
[11:44:49] [Paper Watchdog Thread/ERROR]: com.magmaguy.elitemobs.commands.CommandHandler.onCommand(CommandHandler.java:108)
[11:44:49] [Paper Watchdog Thread/ERROR]: org.bukkit.command.PluginCommand.execute(PluginCommand.java:45)
[11:44:49] [Paper Watchdog Thread/ERROR]: org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159)
[11:44:49] [Paper Watchdog Thread/ERROR]: org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:736)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1826)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1634)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:5)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:18)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.PlayerConnectionUtils$$Lambda$2832/666068239.run(Unknown Source)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:127)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:105)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.MinecraftServer.aW(MinecraftServer.java:995)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:988)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:115)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:972)
[11:44:49] [Paper Watchdog Thread/ERROR]: net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:906)
[11:44:49] [Paper Watchdog Thread/ERROR]: java.lang.Thread.run(Thread.java:748)
[11:44:49] [Paper Watchdog Thread/ERROR]: ------------------------------
[11:44:49] [Paper Watchdog Thread/ERROR]: --- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH ---
[11:44:49] [Paper Watchdog Thread/ERROR]: ------------------------------
[11:44:53] [Server thread/INFO]: BingShanaaa issued server command: /em shop
[11:46:40] [Server thread/INFO]: BingShanaaa issued server command: /em shop
[11:49:53] [Server thread/INFO]: BingShanaaa issued server command: /em shop
[11:52:02] [Server thread/INFO]: BingShanaaa issued server command: /em shop

Well I cant see that MobHunting is mentioned in this stacktrace report, but it seems to happen when you do

/em shop

maybe you should talk to the dev of this plugin? :-)

Thanks for your answer。I confused the plugin, sorry