In the file: eCart1_PHP.php update line 83 from:
if (true && (($this->GetTaxableTotal() > 0) && ((isset($_SESSION['WASF_CheckoutWizard_NewFromBlank_Default'])?$_SESSION['WASF_CheckoutWizard_NewFromBlank_Default']['State_2']:"") == "FL"))) {
to:
if (true && (($this->GetTaxableTotal() > 0) && ((isset($_SESSION['WASF_CheckoutWizard_NewFromBlank_Default'])?$_SESSION['WASF_CheckoutWizard_NewFromBlank_Default']['State']:"") == "FL"))) {