Change classes in login form

-- url of the page with the problem -- : theop11.sg-host.com
-- HikaShop version -- : 4.3.0
-- Joomla version -- : 3.9.0
-- PHP version -- : 7.3.18
-- Error-message(debug-mod must be tuned on) -- : Change login class

Hi,
In my login form (after adding a product and go to checkout) I can't see the the icon icon-user and icon-lock.
I'm using a bootstrap template and I know they use something like this <i class="fa fa-user"></i> and <i class="fa fa-lock"></i>
So I think I have to edit the classes in the login form.
Where can I find this file?
Please help me

Hi Nicolas,

Thank you for this answer, I took the simple solution and switched Bootstrap v2 off and now it works.

Still have one problem but I think it is not a bootstrap issue.
In the checkout workflow I assign the Terms & Condions to the right article, but when I click the link in the front-end, it goes to a non excisting page and gives an error.
Tried all kind off things but this error remains.

Regards, Theo

By the way: My compliments for your GREAT SUPPORT!!!!!

Hello Theo,

I would recommend to activate first the "error reporting" and "debug mode" settings of the Joomla configuration.
Then, Can you give us more information about that error message showing through the term and conditions popup through some screenshots so that we can understand your issue ? Thank you !

Thank you for your feedback we really appreciate it !
Kind regards,
Mohamed.

Thanks but everything is solved by turning of bootstrap v2, since my site works with v3