No error message for contact page email validation

-- HikaShop version -- : 3.5.1
-- Joomla version -- : 3.8.12
-- PHP version -- : 7.2.34
-- Browser(s) name and version -- : chrome

Hi, as you can see in the attachment file, if the email format is incorrect, the form will check and won't allow user to submit the form, but now it is lack of the error message that cannot alert the user when the email address is wrong format, can you show me where can add the error message when the email format enter by user is incorrect after click the submit button.

Hi,

I see two potential issues on your page:
- There is a javascript error when the page is loaded:
i.imgur.com/fctOEbf.png
This could prevent the javascript code of the contact form from working properly because it couldn't be initialized properly.
- You have a really old version of HikaShop with old code to handle the contact form with an old view override.
Since then, we've modified the contact form quite a lot to make it work better.
Updating HikaShop / redoing the view override should help, even with the javascript error still there.

Even I have overwrite the file and remove the jquery conflict, there is still now error message for email

Could you also update your HikaShop ? That should help.