Error When Trying to Edit Table

[Hwona]

The cells and rows look full... umm, I tried editing the "index" thing, but nothing' changing...
edit: whenever I do:
$totalAdopts = $mysidia->db->select("owned_adoptables", array("aid"), "owner = '{$mysidia->user->username}' && tab = 0")->fetchColumn();
$totalAdopts2 = $totalAdopts->rowCount();

instead of:
$totalAdopts = $mysidia->db->select("owned_adoptables", array("aid"), "owner = '{$mysidia->user->username}' && tab = 0");
$totalAdopts2 = $totalAdopts->rowCount();

I get this: Fatal error: Call to a member function count() on a non-object in /home/wallie12/public_html/myadopts3.php on line 30