recovery and re-installation of app on playstore - keystore lost

I am looking for a skilled freelancer who can help me with the recovery and re-installation of my Android app on Playstore. Unfortunately, I have lost the keystore and do not have access to the original files of the app. we hv recovered some of the codes and want to manage with that only.

Requirements:
- Experience in recovering and re-installing Android apps on Playstore
- Knowledge of alternative methods for app recovery without the keystore
- Ability to troubleshoot and solve any technical issues that may arise during the new release upload on playstore

Skills:
- Android app development (react native)
- Playstore app recovery
- Troubleshooting and technical problem-solving

If you have the necessary skills and experience, please reach out to me. Thank you.