"Hi here is in fact I have a problem with the plugin but when I file my 'plugins' I'm nothing ... I would not just in the back of the configue ect because there is not I look if I had not plugins that could make the plugin bug but not yet .. I was just missing plugin in order to finish my server and I do not understand why it does not work, sorry for my English but I am French"

Could be invalid. Working on getting some more details

User was using an old version of Java.
Solution: Tell user to upgrade Java.