I couldn't get or create a module plugin for my Elgg website, instead i just placed links in between text on some of the posts and pictures comments with the rel="nofollow attribute to the amazon products with my id. This way if the website visitor wish to go shopping and purchase items, they can do so by following the suggested links to that shopping online mall.

You can't add it right before line 128 because you would add it within the options array then. Try it with

case 'friends':
    $owner = elgg_get_logged_in_user_entity();
    $options = array(
        'relationship' => 'friend',
        'relationship_guid' => $owner->getGUID(),
        'inverse_relationship' => FALSE,
        'limit' => false,
        'type' => 'user',
        'full_view' => FALSE
    );

The way I fixed it in the original plugin is to change line 128 and replaced $owner with $user, which is defined.But what iionly suggest also works fine.

I do prefer declaring global variables in the beginning, so you will not enter in similar issues somewhere else in the program.

Thank you! Now the plugin works correct and the site doesn't putout errors because of that.

I appreciate your knowledge one more time.