Issue

Hi WPGens team,

Reporting a reproducible fatal in the My Account → Refer a Friend tab. Wanted to flag it in case it’s not already on your radar.

Plugin: WPGens Refer A Friend Premium
File: includes/class-wpgens-raf-myaccount.php
Line: 242

Error:

Uncaught Error: Call to a member function get_email() on bool

Root cause:

In prepare_friends(), the user-lookup block at lines 236–246 checks $order->get_user_id() before fetching the user object, but doesn’t guard against $order->get_user() returning false:

if ($order->get_user_id()) {
    $user = $order->get_user();
    if (!empty($user->first_name)) {
        $user = $user->first_name . ' ' . $user->last_name;
    } else {
        $user = $user->get_email();  // fatals when $user is false
    }
}

If an order’s _customer_user meta points to a user ID that no longer exists in wp_users (deleted customer account, GDPR removal, bulk cleanup, etc.), get_user_id() still returns the orphan ID (truthy), but get_user() returns false. The else branch then calls ->get_email() on false → fatal, and the entire My Account page 500s for any logged-in user whose referral history includes such an order.

In one site I looked at, ~140 orphan orders across ~20 deleted users were enough to make the page completely unusable.

Proposed fix:

Add a !$user guard before the first_name check:

if ($order->get_user_id()) {
    $user = $order->get_user();
    if (!$user) {
        $user = __('Guest (deleted user)', 'gens-raf');
    } elseif (!empty($user->first_name)) {
        $user = $user->first_name . ' ' . $user->last_name;
    } else {
        $user = $user->get_email();
    }
} else {
    $user = __('Guest', 'gens-raf');
}

Happy to provide additional info if useful. Thanks for the great plugin!