Examples of registration problems:

1. No "Register" button / No registration possible

The store administrator can decide whether he will give his customers the opportunity to register to the store on their own. 

If the possibility of registering a new user only by the Store Administrator is set, then the Registration option, i.e. "Register", will not be visible to the user.

2. Blank mandatory fields

If the user has not filled in all the mandatory fields, the message "Complete all fields" will appear when trying to create an account. Additional required fields will be marked in red.