Hello,
1) Point is that your site does not send emails even with the default theme enabled. Try to install one of the dedicated SMTP providers https://docs.woocommerce.com/document/email-faq/#section-7 and check emails after that.
2) All the available settings you can find here https://support.rightpress.net/hc/en-us/articles/200722636-General-Settings
Regards
