How can I resolve the 'Not Found Error' on my online store?

[Itaru]

hello ,sir.

Q:how to fix Not Found Error?

Problem:https://itarutok.com/
I’m making my own store and just have registered some products.
After that , the Debut theme I made on UDEMY lesson shows Not Found Error.
Though Multiple Page and Example Page that was made on UDEMY lesson is showed,
Top page is not fine.

Could you some help ?
thanks.

[eComInsider]

are you still facing them problem?

[Itaru]

actually, I remade a store. thank you, sir.