Update sendfriend_product_send.xml

Author: WaPoNe

app/code/Magento/SendFriend/view/frontend/layout/sendfriend_product_send.xml

@@ -13,7 +13,9 @@
             </action>
         </referenceBlock>
         <referenceContainer name="content">
-            <block class="Magento\SendFriend\Block\Send" name="sendfriend.send" template="send.phtml"/>
+            <block class="Magento\SendFriend\Block\Send" name="sendfriend.send" template="send.phtml">
+                <container name="form.additional.info" as="form_additional_info"/>
+            </block>
         </referenceContainer>
     </body>
 </page>