Hello,
If you want us to understand the situation, you would have to provide screenshot of your configuration and details about the problem.
Since you had not any recurring payment plugin installed/configured, you couldn't use any recurrent payments (so there is no way than a subscription be renewed). Because I don't understand how you could confirm a recurring order without a recurring plugin and I'm not even sure that you're using the recurrent plugin to do so ; I can't tell you anything. I don't understand a thing, you do not provide a lot of explanations.
And in the case where you want me to have a look at your website, you know that I need some details to start, like a link to your test product ; so I could try to reproduce the issue.
But right now, with the current elements and details, please understand that you have to help me to help you.
Regards,