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org.bukkit.command.CommandException: Unhandled exception executing command 'papi' in plugin PlaceholderAPI v2.10.6
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[Spigot.jar:git-Spigot-dcd1643-e60fc34]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[Spigot.jar:git-Spigot-dcd1643-e60fc34]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:648) ~[Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1399) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1234) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_261]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_261]
at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [Spigot.jar:git-Spigot-dcd1643-e60fc34]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_261]
Caused by: java.lang.NoClassDefFoundError: com/wasteofplastic/askyblock/ASkyBlock
at com.extendedclip.papi.expansion.askyblock.ASkyBlockExpansion.register(ASkyBlockExpansion.java:60) ~[?:?]
at me.clip.placeholderapi.expansion.ExpansionManager.registerExpansion(ExpansionManager.java:114) ~[?:?]
at me.clip.placeholderapi.expansion.ExpansionManager.registerAllExpansions(ExpansionManager.java:174) ~[?:?]
at me.clip.placeholderapi.PlaceholderAPIPlugin.reloadConf(PlaceholderAPIPlugin.java:186) ~[?:?]
at me.clip.placeholderapi.commands.PlaceholderAPICommands.onCommand(PlaceholderAPICommands.java:261) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[Spigot.jar:git-Spigot-dcd1643-e60fc34]
... 15 more
Caused by: java.lang.ClassNotFoundException: com.wasteofplastic.askyblock.ASkyBlock
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_261]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261]
at com.extendedclip.papi.expansion.askyblock.ASkyBlockExpansion.register(ASkyBlockExpansion.java:60) ~[?:?]
at me.clip.placeholderapi.expansion.ExpansionManager.registerExpansion(ExpansionManager.java:114) ~[?:?]
at me.clip.placeholderapi.expansion.ExpansionManager.registerAllExpansions(ExpansionManager.java:174) ~[?:?]
at me.clip.placeholderapi.PlaceholderAPIPlugin.reloadConf(PlaceholderAPIPlugin.java:186) ~[?:?]
at me.clip.placeholderapi.commands.PlaceholderAPICommands.onCommand(PlaceholderAPICommands.java:261) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[Spigot.jar:git-Spigot-dcd1643-e60fc34]
... 15 more