Can I connect GiveWP with stripe with no addons?

Hello,
I have a question. I am using GiveWp (free one, with no license and add-ons) and I need to connect it with my Stripe Account. I am not an expert but I am having some problem and I don’t know why. I was able to connect the Stripe account in the GiveWP Payment Getaway but there is no way to put the secure API Keys (the form is missing). For this reason, I guess when I try to do a donation it doesn’t go thought since the intent is missing. Should I buy the GiveWp basic license in order to be able to complete the transition and be able to add the API Keys? Sorry for the stupid question, bus as I mentioned I am not a developer.
Best,
Monica