If you purchased a Shopify Store build, and just accepted the Staff account. You might be trying to preview how the store looks.
Shopify will show a password required, until we transfer the store to you.
To preview the storefront, you can find the password on the "preferences" page inside the shopify admin.
On sidebar of shopify admin, click "online store" , then click "preferances"
Scroll down to bottom of page and you will find password
*Shopify will NOT ALLOW YOUR TO REMOVE PASSWORD, until we transfer the store to you, this is normal.
Message us when you are ready to accept the store, or if you have any questions.