Why my menu cannot be folded/expanded?

ASP.NET Maker General Discussion (ASP.NET Maker)
1

My sidebar sub-menus cannot be folded &expanded by the parent group items.
I don`t know where I can config.
Thanks for answers.

2
  1. Please make sure that you have cleared browser cache before testing
  2. Press F12 → Console to check for any Javascript error
3

IT WORKS after troubleshooting in F12.
Thanks.

4

If the same code works locally, but fails on my hosting account, what do you think it is missing here? Is there something else I need to deploy to the server?Please advise

5
  1. Make sure you have uploaded all generated scripts to your server, and press Ctrl + F5 in your browser to update the files.
  2. You may need to stop your site before you upload so that the files on your server can be replaced.