I was able to reproduce your problem and have already created an internal ticket to resolve it. We will let you know the result as soon as possible. We apologize for the inconvenience.
Sorry for the delay with the response!
We just checked your app and found in the deployment model “teacherMembership” the API Service “stripe” doesn’t have an XML file which describes the logic for the “confirmStudentSubscriptionPaymentIntent” method.
Since it was some time ago it’s quite difficult to find the reason what exactly could have gone wrong, so, please let us know if you need help with the method restoration.