org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: org/enginehub/piston/exception/CommandException
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:139) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:333) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:252) [craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at org.bukkit.craftbukkit.v1_14_R1.CraftServer.loadPlugins(CraftServer.java:347) [craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at net.minecraft.server.v1_14_R1.DedicatedServer.init(DedicatedServer.java:194) [craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:761) [craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
Caused by: java.lang.NoClassDefFoundError: org/enginehub/piston/exception/CommandException
	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_171]
	at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_171]
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:59) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	... 6 more
Caused by: java.lang.ClassNotFoundException: org.enginehub.piston.exception.CommandException
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_171]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:135) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:81) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_171]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_171]
	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_171]
	at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_171]
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:59) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[craftbukkit.jar:git-Spigot-093165d-ba575a5]
	... 6 more