How can I create application on my sub folder?

Control Panel V5 > Hosting Control Panel > Websites
If you want to run your application in your site's sub folder, you should set the sub folder as application to make it working. Please follow the instructions below to set it.

1. Login to your hosting control panel.
 --> the specific site --> Manage Website --> Create .Net App
3. Select the folder which is needed to set as application, and click on create button to create it.