Hey so the last update checker did not work. This has now been fixed. I also did not import the spigot and paper spigot jars, in the last couple of updates to the plugin only worked on 1.8.8 this has now been fixed and will support from 1.7 - 1.12.2.
New Commands:
I added a new Command /pupdate This command will just send a message if the plugin is up to date or not. This is currently a replacement for the JoinEvent until i add this in the next update or the update after depends if i have a working Punishment System by then. The Permission Node for this is pgui.update.