i have install localWP app on my laptop but i try to create site the ask me for the credential of the site i provide it , and still give an error msg enter image description here

create site using localwp app , and fix the problem help please can any body help i want to start working for my self as e-commerce dev and i need your recommendation of plugin and theme ,
how to create pages , post, pagelinks , blogs and manage differents site on pc , before i install localwp app i’m using xampp and wampp apps by here i need your suggestion please ,
i want learn elementor plugin for better site create.