[18.10.2019 17:53:56] INFO: [Gangstercity-1] java.lang.IllegalArgumentException: Listener already listening
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.Container.addSlotListener(Container.java:56) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.EntityPlayer.syncInventory(EntityPlayer.java:174) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.PlayerList.a(PlayerList.java:174) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.LoginListener.b(LoginListener.java:144) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.LoginListener.c(LoginListener.java:54) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.NetworkManager.a(NetworkManager.java:231) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:148) [spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814) [spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot.jar:git-Spigot-db6de12-18fbb24]
[18.10.2019 17:53:56] INFO: [Gangstercity-1]  at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]