please send a copy of the menu.php page so i can see this code in context, judging by the screen shot, all i can really guess is that there is a row being returned with a blank value.
what do you get if you change:
<?php if ($totalRows_rsContent > 0) { // Show if recordset not empty ?>
to:
<?php if ($totalRows_rsContent > 0) { // Show if recordset not empty ?>Rows: <?php echo($totalRows_rsContent); ?>