WordPress Developer for Plugin Fixes

We are experiencing an issue with Ultimate Membership Pro v13.5.7.3 and its Stripe integration on our live WordPress website. Issues: 1. New WordPress user accounts are not created after registration. 2. Stripe processes a one-time payment instead of the intended recurring subscription. This might be caused because of issue 1. because it was successfully making the subscriptions before issue 1 was there. Plugin logs show uid = 0, is_register = false, and missing customer details, despite the webhook returning HTTP 200. Requirements: Identify and fix the root cause. Ensure successful registrations create WordPress accounts and Stripe subscriptions correctly. Required Experience: Proven experience with WordPress, Ultimate Membership Pro, Stripe subscriptions, webhooks, and PHP debugging. We can provide relevant logs, timestamps, and Stripe transaction references privately. No additional live charges should be made during troubleshooting. Start your bid sentence with "Banana" so that I know you've read it.