New membership subscription compatible with a site already using WPMF?

Hello!

I run a website that uses WPMF, as well as WPMF Gallery and PDF Embed. The gallery feature has been quite glitchy recently and I have been trying to update it, but my subscription is out of date and I need to renew it.

However, I don't know who originally made our account and bought a subscription. We are happy to purchase a new subscription to get the updates, but I am worried that in doing this, we will lose our current media folder and site galleries. I am not sure how long we have been using it, but I am guessing 5 years or more from the date on some images. The version we have currently is 5.8.0. Thank you!