https://addons.prestashop.com/en/support-online-chat/22666-online-chat.html
With the
Online Chat module developed by PrestaShop, you can finally offer
an online chat system on your shop to have discussions with your customers. This communication tool has become
vital for e-commerce stores and allows you to create stronger relationships with your customers by guiding and advising them in their purchases in real time.
With
this module that requires no subscription, improve your customer relations and your after-sales services, while
increasing your conversion rate by up to 40%!
I have tested it on 9.0 and 8.2.
It works on 8.2 but breaks dashboard on 9.0.
Something about $this->get("twig") in 9.0 doesn't work, it returns null.