Haven't installed square in a very long time but new client website now needing it. php 7.1, zc 1.5.5f, square version .97

New square account. The issue may be that I'm just missing something at square. I was able to retrieve everything to put in admin but it insists no access token. I did put in the Redirect URL at square but it states completely for everything that it is sandbox credentials. I see no way to reset if it's needed for a live site. If I click to authorize, it says "Client requires a Redirect URL to use OAuth"

What am I missing here?