if ($r) {
$remote_url = $r[0]['url'];
$message_path = preg_replace('=(.*)/profile/(.*)=ism', '$1/message/new/', $remote_url);
- $wallmessage_link = $message_path . base64_encode($profile['addr']);
+ $wallmessage_link = $message_path . base64_encode(defaults($profile, 'addr', ''));
} else if (!empty($profile['nickname'])) {
$wallmessage_link = 'wallmessage/' . $profile['nickname'];
}