Então o problema deve ser por eu não estar achando as seguintes tags no OTS_Account...
private $data = array('email' => '', 'blocked' => false, 'rlname' => '','location' => '','page_access' => 0,'lastday' => 0,'premdays' => 0, 'created' => 0);
$this->data = $this->db->query('SELECT ' . $this->db->fieldName('id') . ', ' . $this->db->fieldName('name') . ', ' . $this->db->fieldName('password') . ', ' . $this->db->fieldName('email') . ', ' . $this->db->fieldName('blocked') . ', ' . $this->db->fieldName('rlname') . ', ' . $this->db->fieldName('location') . ', ' . $this->db->fieldName('page_access') . ', ' . $this->db->fieldName('premdays') . ', ' . $this->db->fieldName('lastday') . ', ' . $this->db->fieldName('created') . ' FROM ' . $this->db->tableName('accounts') . ' WHERE ' . $this->db->fieldName('id') . ' = ' . (int) $id)->fetch();
$this->db->query('UPDATE ' . $this->db->tableName('accounts') . ' SET ' . $this->db->fieldName('password') . ' = ' . $this->db->quote($this->data['password']) . ', ' . $this->db->fieldName('email') . ' = ' . $this->db->quote($this->data['email']) . ', ' . $this->db->fieldName('blocked') . ' = ' . (int) $this->data['blocked'] . ', ' . $this->db->fieldName('rlname') . ' = ' . $this->db->quote($this->data['rlname']) . ', ' . $this->db->fieldName('location') . ' = ' . $this->db->quote($this->data['location']) . ', ' . $this->db->fieldName('page_access') . ' = ' . (int) $this->data['page_access'] . ', ' . $this->db->fieldName('premdays') . ' = ' . (int) $this->data['premdays'] . ', ' . $this->db->fieldName('lastday') . ' = ' . (int) $this->data['lastday'] . ' WHERE ' . $this->db->fieldName('id') . ' = ' . $this->data['id']);