Login and My Account

I need some help with the login redirect. I feel that it should be straightforward…

When someone enters a login or registers – there should be a redirect to a “My Account page” (I assume). Not on my site… https://www.legrandmusicstudio.com. They get a page not found. The “My Account Page” is working properly otherwhise. Any ideas?

https://www.ads-software.com/extend/plugins/woocommerce/