wp_generate_password() is undefined in a plugin

You’d need to edit the plugin functions probably, but more details on the plugin itself would help – is it provided by www.remarpro.com, or versioned elsewhere by yourself ?

Simple question: how does WP knows that function wp_generate_password is loaded.
I see that this happens often in the past.

Plugin is developed by us.
if(isset($_GET[‘mm_confirm’])) {
$invite = $GLOBALS[‘wpdb’]->get_row(“SELECT * FROM wp_users_invitations WHERE hash = ‘”.addslashes(trim($_GET[‘mm_confirm’])).”‘”);
if($invite) {
$random_password = wp_generate_password( $length = 6, $include_standard_special_chars=false, $extra_special_chars = false);
$user_id = wp_create_user( $invite->email, $random_password, $invite->email );
if(!is_int($user_id)) {
if($error_codes = $user_id->get_error_codes()) {
foreach($error_codes as $error_code) {
if($error_messages = $user_id->get_error_messages($error_code)) {
foreach($error_messages as $error_message) {
echo $error_message.”;
}
}
}
}
}

what is the name of the plugin in question?
where did you download it from?

As I wrote: Plugin is developed by us.
But that is not the question.

How is it possible that a default function is not loaded and how can I solve this?

Will have to figure it out for myself.