Hello. I’m a Japanese, so my English is maybe so bad.Sorry. I want to use custom login or sign up form only MAILADDRESS and PASSWORD. I found this page : https://auth0.com/docs/libraries/custom-signup . So I created a form to enter my email address and password and sent information from PHP to …

As @arts link suggests you need to put the name of your database connection as part of this. I believe the connection parameter is required even if you have a single connection.