[19:37:48] [Server thread/INFO]: [pSync] PlaceholderAPI hook: enabled
[19:37:48] [Server thread/ERROR]: Error occurred while enabling SyncPlaceholderData v1.0 (Is it up to date?)
java.lang.NoClassDefFoundError: be/maximvdw/placeholderapi/PlaceholderReplacer
	at nl.maartenvr98.syncplaceholders.Main.onEnable(Main.java:46) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:339) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:403) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at org.bukkit.craftbukkit.v1_13_R2.CraftServer.enablePlugin(CraftServer.java:431) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at org.bukkit.craftbukkit.v1_13_R2.CraftServer.enablePlugins(CraftServer.java:345) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at net.minecraft.server.v1_13_R2.MinecraftServer.l(MinecraftServer.java:584) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:546) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:424) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at net.minecraft.server.v1_13_R2.DedicatedServer.init(DedicatedServer.java:294) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:702) [spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
Caused by: java.lang.ClassNotFoundException: be.maximvdw.placeholderapi.PlaceholderReplacer
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_181]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:154) ~[spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:100) ~[spigot.jar:git-Spigot-f6a273b-5ee1c18]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_181]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_181]
	... 12 more