You need to access the custom-functions.php file in the theme directory there you can change the text also you can send us the site url and the login details to support@flythemes.net so we can do that.
Go to settings >> readings >> Here you can select latest post option so all the section will be display in homepage. If it still not working please send us your site url and the login details to support@flythemes.net so we can check the backend and resolve it.
You can customize the search shortcode by go to Appearance >> Editor >> custom-functions.php >> here you can find search function. Also you can use this shortcode on any section.
