For my better understanding, did you install version 24.12.20, it caused you to lose your progress, and it's still not back after installing the new version 24.12.21?
Viewing post in Lost my save after update 24.12.20 on android
The new upload version 24.12.26 for android solves the issue and returns the old progress.
Please be aware that saves from the bugged version will not be visible in any following updates, so if you want to continue your progress later, you should update and play with the newer version and not start a new save in the bugged version.