If question was asked by guest, then if you try to add an answer to it, you'll get an error:

Warning: array_merge(): Argument #1 is not an array in /components/com_communityanswers/controllers/answers.php on line 522

Here's a code:

if($question->created_by == 0){

						

$asker = new stdClass();

$asker->name = $question->username;

$asker->email = $question->email;

$asker->subid = 0;



$admins = array_merge($asker, $admins);

}

Clearly $asker here is an object, not array. This is why error occurs. Changing to this fixes the problem:

$admins = array_merge(array($asker), $admins);