Now the plugin will work at 60% in older versions, some commands and features will work, some of them like: /gms /wipe .. and all the bungeecord alerts will be displayed, meaning that you can have this plugin in for example the lobby and use it just for the alerts and basic commands. I'm planning to add some features retrocompatible like /ban and /report but that would be in the future.
I also replaced "baned" with "banned" in the hole code, if you experience some bugs, just delete the older config and reload the server.
Some bans may be deleted because of the replacement, but this will add more quality to the src(Thx GalaxyLova for the advice).
I also implemented a new API, here you can see how to implemented into your custom plugins, I will be adding more stuff to the API in the future.