src/main/java/com/bib/essensbestellungsverwaltung/SingUpController.java

@@ -93,8 +93,6 @@ public class SingUpController {
 
     @FXML
     private void onAnmeldenBtClick() throws IOException {
-        FXMLLoader fxmlLoader = new FXMLLoader(StartViewApplication.class.getResource("login-view.fxml"));
-        Scene scene = new Scene(fxmlLoader.load(), 950,480);
-        StartViewApplication.primary.setScene(scene);
+        StartViewApplication.changeScene("login-view.fxml");
     }
 }