What could be the reason it does not work for me. I have Vault installed Multiverse Core installed Created a new world with multiverse core and am able to go to it and back cannot use or make portals there is no /mvp or /mvp wand commands... Not even a MVP folder within the plugins folders. There is a MVC folder. Error Log: [Server thread/ERROR]: Could not load 'plugins\Multiverse-Portals-4.1.0.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/onarandombox/commandhandler/Command at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:137) ~[craftbukkit.jar:git-Bukkit-8160e29] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:333) ~[craftbukkit.jar:git-Bukkit-8160e29] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:253) [craftbukkit.jar:git-Bukkit-8160e29] at org.bukkit.craftbukkit.v1_15_R1.CraftServer.loadPlugins(CraftServer.java:349) [craftbukkit.jar:git-Bukkit-8160e29] at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:197) [craftbukkit.jar:git-Bukkit-8160e29] at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:762) [craftbukkit.jar:git-Bukkit-8160e29] at java.lang.Thread.run(Unknown Source) [?:1.8.0_241] Caused by: java.lang.NoClassDefFoundError: com/onarandombox/commandhandler/Command at java.lang.Class.forName0(Native Method) ~[?:1.8.0_241] at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_241] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:60) ~[craftbukkit.jar:git-Bukkit-8160e29] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[craftbukkit.jar:git-Bukkit-8160e29] ... 6 more Caused by: java.lang.ClassNotFoundException: com.onarandombox.commandhandler.Command at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_241] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:146) ~[craftbukkit.jar:git-Bukkit-8160e29] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:92) ~[craftbukkit.jar:git-Bukkit-8160e29] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_241] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_241] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_241] at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_241] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:60) ~[craftbukkit.jar:git-Bukkit-8160e29] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[craftbukkit.jar:git-Bukkit-8160e29] ... 6 more Thank you for your help.