Old style debug example

// Find these lines
tribe_get_ticket_form();
$price_differential = max($wootickets_pricing) > min($wootickets_pricing);

// For troubleshooting purposes, "wrap" them up with a couple of extra lines before
// and after(of course, do this on your test site not your live site!)
echo 'Pricing data: ';
var_dump($wootickets_pricing);
tribe_get_ticket_form();
$price_differential = max($wootickets_pricing) > min($wootickets_pricing);
echo 'Pricing data: ';
var_dump($wootickets_pricing);