Can’t find Home Page

My home pages is not there on the internet. A message is there that says,
Not Found
Sorry, but you are looking for something that isn’t here. You can search again by using this form…

I also can’t seem to find it on my edit page. All of my other pages are there if I need to edit them.

If you don’t mind please have a look. https://lifesuccesscoach.com or lifesuccesscoach.com

How can I get it to where anyone who types in the www. or leaves them out and just types in my website name. I would like to have both working.

I can’t seem to find the edit page to edit my Home page. This is not a Blog page only still website.

Thank you for your help,
G