Remember...
getLogger().info(" "); displays information by default, u don't need use directly Bukkit.getConsoleSender().sendMessage("");
You need register events
Bukkit.getPluginManager().registerEvents(new events());
Important, don't use Essentials as static access, use Vault for get the economy and make it global, not only for Essentials.
Update your scoreboard, make it on enable method
And the most important: learn Java