How can I change the Page Title of my form?

I cloned a form (for using one title to another title)

EX.

TITLE ONE - ORIGINAL

CLONED CHANGED TO

TITLE 2- All setting changed

but the metadata still the title one.

How to resolve this?

I'm not sure what you mean but from how you described it, you are referring to the page title of your form (the title you see on the browser tab). To change this, just refer to the guide I'm linking below.

Complete guide: How-to-Change-the-Page-Title-of-the-Form

In case we misunderstood your question, just get back to us with a bit more info and a clearer description of what you're trying to do so we can better assist you.