Your jvzoo affiliate dashboard stats might not display until you add a payment option eg paypal. So, go ahead and link your paypal account.
Once linked successfully, if you click on the affiliate dashboard link, you should be able to see the stats : clicks, visits, sales etc
ref : https://jvzoo.zendesk.com/hc/en-us/articles/214485598-Dashboard-link-is-not-working