Hi Cmf It's not just the forgot password I'm afraid, it's also not possible to add to cart on your site at the moment. You need to make sure the ectcart.js javascript file is included in all your store pages and it isn't at the moment. There are more details here... https://www.ecommercetemplates.com/support/topic.asp?TOPIC_ID=107040 One you do that, things should start working properly again.
By the way, I'm also planning a refresh to the site... new template and all, would it be better to work on the new template? Would that have to links for the ectcart.css and the ectcart.js?