The users must use the email address registered in PeopleHR at that current time within the personal tab.
As an admin, to check it and provide it to the employee:
Click Access Button
then click Employees.
Search for the employee and go to the Personal tab.
See Email Address field.
📌Note: To check any changes made to the email address you can click on the clock icon.
As a non-admin user, you will need to reach out to your company's HR or Admin department, to provide you with the correct email address.
After you have been given the correct email address, you can follow the login process. If still having issues, reset your password.