Error occurs: wp_insert_user(): need to specify user_pass field

Error occurs: wp_insert_user(): To create a new user, you need to specify the user_pass field. The user will need to reset the password before logging in for the first time. If in the file profile-builder/front-end/register.php replace line 54: $password = “; with line: $password = ‘placeholder’; the error will disappear. Error tracing:

1. wp-includes/functions.php:6131
2. wp_trigger_error()
   wp-includes/user.php:2233
3. wp_insert_user()
   wp-includes/user.php:2952
4. wp_create_user()
   wp-content/plugins/profile-builder/features/email-confirmation/email-confirmation.php:627
5. wppb_create_user()
   wp-content/plugins/profile-builder/front-end/register.php:77
6. wppb_activate_signup()
   wp-content/plugins/profile-builder/features/functions.php:328
7. wppb_add_activation_message()
   wp-includes/class-wp-hook.php:341
8. apply_filters('the_content')
   wp-includes/post-template.php:256
9. the_content()
   wp-content/themes/stroyrating/page.php:42