how can we upload the blog theme.

Hey Gökhan,
Do you mean that you are using the Medical Demo for your site, and now wish to using the “Enfold Lifestyle Blog Demo” for the blog page on your site?
If this is true, then unfortunately you can not install two demos on the site to use at the same time.
You can however install another WordPress in a sub-directory of your site, such as “blog” and then import a different demo.
Here is a video on installing a second WordPress on the same domain: https://youtu.be/ZfMgAAH9Jis

Please note that the two wordpress’s would not share posts or information between them, but you can link to each in the menus by manually adding the links.

Best regards,
Mike

Hi,
Glad we were able to help, we will close this now. Thank you for using Enfold.

For your information, you can take a look at Enfold documentation here
For any other questions or issues, feel free to start new threads under Enfold sub forum and we will gladly try to help you :)

Best regards,
Mike