Instead of changing the field, a new entry is added?

Question

ORM

You have the following code:
$findone = R::findOne('users', 'username = ?', array($_SESSION['log_data']));
$loadya = R::load('users', $findone->id);
$load_time = $findone->time+50;
$loadya->time = $load_time;
R::store($loadya);
This code should take the existing 'balance' and add 50 to it, but instead it adds a new entry with all null fields except time. Can anyone suggest what is wrong?