diff --git a/includes/modules/shipping_estimator.php b/includes/modules/shipping_estimator.php
index 60ae93d088..11a85ceb04 100644
--- a/includes/modules/shipping_estimator.php
+++ b/includes/modules/shipping_estimator.php
@@ -163,6 +163,7 @@ function shipincart_submit(){
 
     if (zen_not_null($module)){
       foreach ($quotes as $key=>$value) {
+        if (!isset($value['id'])) continue;
         if ($value['id'] == $module) {
           $selected_quote[0] = $value;
           if (zen_not_null($method)) {
diff --git a/includes/templates/template_default/templates/tpl_modules_shipping_estimator.php b/includes/templates/template_default/templates/tpl_modules_shipping_estimator.php
index 4652fc3ff2..e8c827ff1c 100644
--- a/includes/templates/template_default/templates/tpl_modules_shipping_estimator.php
+++ b/includes/templates/template_default/templates/tpl_modules_shipping_estimator.php
@@ -130,8 +130,8 @@
             }
           }
         } else {
-          // shipping method with sub methods (multipickup)
-          for ($j=0, $n2=sizeof($quotes[$i]['methods']); $j<$n2; $j++) {
+          // shipping method with sub methods (multipickup) or none
+          for ($j=0, $n2=(empty($quotes[$i]['methods']) ? 0 : sizeof($quotes[$i]['methods'])); $j<$n2; $j++) {
             $thisquoteid = '';
             if (isset($quotes[$i]['id']) && isset($quotes[$i]['methods'][$j]['id'])) {
                 $thisquoteid = $quotes[$i]['id'].'_'.$quotes[$i]['methods'][$j]['id'];