Hello,
The Stripe subscription system is not a recurring system and will not be compatible with components such as HikaSubscription.
There are other threads in the forum which talk about that specific subject.
HikaSubscription comes with the Paypal Recurring payment plugin ; but the HikaShop team developed a plugin for Bambora which has recurring capabilities (with the HikaShop recurring feature).
Such feature can be implemented when the payment gateway can offer some specific services, such as Babora or Authorize (one specific API).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.