if you have chosen one of the higher plans, you need to setup a
Stripe Account at the official website: www.stripe.com
Select "Settings" > Payments > Stripe
Fill in your Secret Key and Publishable Key from your Stripe account – please don't share your keys with anyone.
Here is the link to obtain your keys: https://dashboard.stripe.com/account/apikeys
Yes, you need a PayPal account in order to receive payments at Shoppi. The system automatically ask you for your PayPal email after creating a new store page.
You can create a PayPal account via the official website: www.paypal.com