[17:02:18 INFO]: VergilPrime issued server command: /test
[17:02:18 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'test' in plugin CommandHelper v3.3.2-SNAPSHOT.3278-
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:649) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1397) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1232) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_131]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_131]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]
Caused by: java.lang.NoClassDefFoundError: me/clip/placeholderapi/PlaceholderAPI
        at me.pseudoknight.chplaceholderapi.Functions$set_placeholders.exec(Functions.java:47) ~[?:?]
        at com.laytonsmith.core.Script.eval(Script.java:356) ~[?:?]
        at com.laytonsmith.core.Script.eval(Script.java:325) ~[?:?]
        at com.laytonsmith.core.Script.eval(Script.java:325) ~[?:?]
        at com.laytonsmith.core.MethodScriptCompiler.execute(MethodScriptCompiler.java:2015) ~[?:?]
        at com.laytonsmith.core.MethodScriptCompiler.execute(MethodScriptCompiler.java:1973) ~[?:?]
        at com.laytonsmith.core.constructs.CClosure.execute(CClosure.java:187) ~[?:?]
        at com.laytonsmith.abstraction.bukkit.BukkitMCCommand.handleCustomCommand(BukkitMCCommand.java:256) ~[?:?]
        at com.laytonsmith.commandhelper.CommandHelperPlugin.onCommand(CommandHelperPlugin.java:602) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-1.12.2.jar:git-Spigot-3d850ec-f46ccd7]
        ... 15 more