You need to go to https://expoship.dev/#pricing and make a purchase first to get access to the dashboard
Trying it again now it’s still the same bug, and the email doesn’t arrive.
If you have bugs like this at the first point you’re trying to acquire a customer then that doesn’t bode well for the robustness of the product you’re selling.
I was genuinely interested to buy this (I bought shipfa.st, and have found it very useful) but this is a big red flag.