While installing your theme through wordpress admin, you may encounter an error message saying “are sure you want to do this?”. This is mainly due to your hosting php settings. The Zoner theme zip file is roughly around 10mb and in some hostings the default value for max_upload_limit left default which is 2mb.
To solve this problem you should either increase your maximum upload size (to 10mb) on your hosting admin panel or ask your host to do it for you if you do not have the privilege to alter your server php settings.
This is a very common request and they should be able to help you out. Once the limit is increased you can re-try the install and you’ll be all good to go.