[14:13:12 ERROR]: Error occurred while enabling Lobby v1.0 (Is it up to date?)
java.lang.IllegalArgumentException: Name cannot be null
at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[uspigot.jar:git-PaperSpigot-"8b18730"]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.getWorld(CraftServer.java:1042) ~[uspigot.jar:git-PaperSpigot-"8b18730"]
at org.bukkit.Bukkit.getWorld(Bukkit.java:517) ~[uspigot.jar:git-PaperSpigot-"8b18730"]
at de.dave_911.Lobby.Lobby.onEnable(Lobby.java:183) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[uspigot.jar:git-PaperSpigot-"8b18730"]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:332) [uspigot.jar:git-PaperSpigot-"8b18730"]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404) [uspigot.jar:git-PaperSpigot-"8b18730"]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:359) [uspigot.jar:git-PaperSpigot-"8b18730"]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:318) [uspigot.jar:git-PaperSpigot-"8b18730"]
at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:408) [uspigot.jar:git-PaperSpigot-"8b18730"]
at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:372) [uspigot.jar:git-PaperSpigot-"8b18730"]
at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:327) [uspigot.jar:git-PaperSpigot-"8b18730"]
at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:267) [uspigot.jar:git-PaperSpigot-"8b18730"]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:563) [uspigot.jar:git-PaperSpigot-"8b18730"]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]