When I customize my Business Theme and Save and Publish, it reverts to the default


Please I notice the following problems and I need urgent help:

When I try to customize the theme by going to the Dashboard > Appearance > Theme > Customize and I customize the it there and click Save and Publish it reverts back to the default

2) I am still yet to get an answer as to how to edit the “Find out more” (green link) which is on the home page and when clicked is directed to the url: http://www.yourpagelink.com/

Thank you