After downloading Elessi from Theme Forest to your device, please make sure that you have unzipped the theme package before uploading it to your store. If you do not extract it, you will get the issue “zip does not contain a valid theme: missing template “layout/theme.liquid“.

To import the demo, you need to download the full package on Theme Forest and extract the file zip.
This is the video to guide you Import Demo:
Step 01: In Customize Theme backend, go to Theme Settings to activate the theme.
Step 02: In the Theme Active option, paste your license code in the Purchase code option. Then click the Save button to activate the theme.
Step 03: Reload the page, the theme has been activated.