The ‘my account' page is currently showing only the Login section. It should show Login and also Register, like on your demo: http://demo.wedevs.com/dokan/my-account/
I have reinstalled this page using the Woocommerce tools, but there is no change.
I also need to know where to change the number of products shown on a shop page. It is currently set to 10, but with the 4-column layout you have used this leaves a 2-product gap at the end of the page, which looks odd.