Issue with creating Subscriptions

I was trying to add subscriptions plans to my wordpress site and
when I click "add" after filling in all the fields, I get brought back
to the Subscriptions plans list view, but it remains empty. None of my
subscriptions seem to be getting added. Am I forgetting to adjust some
settings?

Note: just for clarification, the problem is not that my subcriptions
aren't showing on my actual website (front end), it is that they
aren't showing in my /wp-admin panel (back-end)

Thank you for your help.