code: public void initialiseDatabase() {
          if (!databaseInitialized) {
              sendConsoleMessage(Level.INFO, getLanguageManager().getString("loading_database_manager"));
              storageHandler = new StorageHandler();
  
              //TODO: Re-support that
              if (getMainConfig().getBoolean("System.Database.ConvertFromH2")) {
                  convertDatabase();
              }
  
              databaseInitialized = true;
              sendConsoleMessage(Level.INFO, getLanguageManager().getString("database_manager_loaded"));
          }
      }
docs: Initialize the database Manager