I need an experienced PHP developer to dive into a small script and eliminate three nagging issues. First up—the PayPal integration. On desktop everything works, but on mobile the PayPal button simply isn’t clickable. I want that fixed and fully tested across common iOS and Android browsers. Once PayPal is solid, I also need: • The user-registration glitch resolved (some sign-ups never complete). • A MySQL error that appears when a user requests a password reset cleaned up so the email flow works flawlessly. You’ll work with the original, unmodified source files that I’ll supply as soon as we start. Please showcase past work that proves you’ve untangled similar PHP, PayPal API, and MySQL issues. Acceptance criteria • PayPal button functions on mobile and desktop, processing payments end-to-end. • Registration completes without errors for new users. • Forgotten-password process runs without SQL warnings and sends the reset link correctly. If you can tick those boxes quickly and cleanly, let’s get started.