Theme demo not installing

Please contact the theme’s author that provided this “demo” installer for help.

There’s nothing we can do to help you here, unfortunately.

If the theme in question is the CiyaShop theme that’s currently active on your site, you can find its support info here: https://themeforest.net/item/ciyashop-responsive-multipurpose-woocommerce-wordpress-theme/22055376/support

Good luck!

For pro or commercial product support please contact the developer directly on their site. This includes any pre-sales topics as well.

As the developer is aware, commercial products are not supported in these forums. I am sure they will have no problem supporting you there.