I installed the template 456ecology but the demo content it does not work or did not go up and the page look very bad. Please let me know how I can import the demo content in this template. Thanks!!
You should contact the developer of this item for help with the demo content. The forums aren’t a good place to seek support for items. Especially because most people are probably not familiar with the product. Unfortunately it appears this item is no longer supported - http://themeforest.net/item/456-ecology-eco-shop-nature-environment-green-theme/8127942/support.
You may want to a seek help at Envato Studio - https://studio.envato.com/explore/wordpress-installation