Error in Shopify theme

[teapoet9]

Wasn’t sure where to find help. Nothing on Envato except this Forum.

Exploring this theme:

anvanto-kaline

Error message displayed on:
https://anvanto-kaline.myshopify.com/account/login/?_ab=0&_fd=0&_sc=1&preview_theme_id=73227763796

Message:
Theme cannot be previewed because it’s missing one of these required files: layout/theme.liquid, config/settings_schema.json

[The4]

They set the wrong preview link, please ask them to edit to the correct link.
You can check other high quality Shopify theme here https://themeforest.net/collections/6804804-the-best-shopify-themes