Me equivoque con la visibilidad del metodo

src/main/java/xyz/danielcortes/controllers/LaunchController.java

@@ -197,7 +197,7 @@ public class LaunchController {
     this.frame.setJMenuBar(menuBar);
   }
 
-  private void showCard(PanelName name){
+  public void showCard(PanelName name){
     this.controllers.get(name).show();
     this.frame.showCard(name);
   }