private synchronized void loadRestrictedAreaSettings(){
this.restrictedAreas.clear();
File f = new File(plugin.getDataFolder(), "restrictedAreas.yml");
YamlConfiguration conf = YamlConfiguration.loadConfiguration(f);
conf.options().indent(2);
conf.options().copyDefaults(true);
StringBuilder header = new StringBuilder();
header.append("Restricted area configuration")
.append(System.getProperty("line.separator"))
.append(System.getProperty("line.separator"))