I use a free Apple Personal Team with Xcode for on-device testing. My Apple Development certificate created on 15 August 2026 shows “Missing Private Key”, and Xcode is not allowing me to create a fresh replacement certificate. I have already contacted Apple Developer Program Support, and they directed me to the Apple Developer Forums for technical assistance. How can I revoke/reset the unusable certificate or clear the certificate state for my Personal Team so that Xcode can create a new Apple Development certificate?