If the Safe mode checkbox in the project parameters is checked, authentication is needed for a user to work in the system.
But before that, the user must be registered in the framework. To register a user select Users node, click New and fill in the form that appears:
Name – user name
Login - login
Password - password
Role – user role
Information - some additional information
Admin - if this flag is set, the user has the right to work in the Application builder.