[10:10:40 WARN]: [CloudNetAPI] Task #10068 for CloudNetAPI v2.1 generated an exception
[29.03.2021 10:10:41] INFO: [Lobby-1] java.lang.IllegalArgumentException: Cannot drop AIR.
[29.03.2021 10:10:41] INFO: [Lobby-1]   at org.apache.commons.lang.Validate.isTrue(Validate.java:136) ~[patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at org.bukkit.craftbukkit.v1_8_R3.CraftWorld.dropItem(CraftWorld.java:334) ~[patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at de.dytanic.cloudnet.bridge.internal.serverselectors.packet.in.PacketInMobSelector$4$2.doCatch(PacketInMobSelector.java:88) ~[?:?]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at de.dytanic.cloudnet.bridge.internal.serverselectors.packet.in.PacketInMobSelector$4$2.doCatch(PacketInMobSelector.java:66) ~[?:?]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at de.dytanic.cloudnet.lib.utility.MapWrapper.transform(MapWrapper.java:49) ~[?:?]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at de.dytanic.cloudnet.bridge.internal.serverselectors.packet.in.PacketInMobSelector$4.run(PacketInMobSelector.java:61) ~[?:?]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:59) ~[patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:352) [patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:783) [patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [patched.jar:git-PaperSpigot-"4c7641d"]
[29.03.2021 10:10:41] INFO: [Lobby-1]   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_282]