Are you using any of the local payment methods such as Sofort, Alipay, Bancontact, giropay, iDEAL, Przelewy24 or WeChat Pay? It is these specifically that Stripe is removing support for. If you are, I would recommend removing the instances of the Stripe gateway that have these enabled.
These are still available in Invision Community at this time as options for Stripe but will be removed in a future release.