throwing

I am new to using this and am not the most experienced person. I have an error when trying to start my server with Nukkit. This is everything my control console gives me and I am trying to make a little more sense of the problem. 14.04 04:58:06 [Multicraft] Loading server properties 14.04...

Can anyone help? My console says this (you can probbably gather what plugins im using) 19:18:38 [INFO ] Loading nukkit.yml ... 19:18:39 [INFO ] Loading server.properties ... 19:18:39 [INFO ] Selected English (eng) as the base language 19:18:39 [INFO ] Starting Minecraft: BE server version...

When I try to start my server the console says this: (i hid my ip address) 10:51:07 [INFO ] Loading nukkit.yml ... Exception in thread "Thread-1" java.lang.ExceptionInInitializerError at cn.nukkit.console.NukkitConsole.runCommand(NukkitConsole.java:29) at...