Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I've had a similar problem.
I modified uninstallation infomation and it worked.
Please type following command in command prompt on your user account with error.
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\SaRA" /v "SaraInstalled" /t REG_SZ /d "0" /f
Instead, You can remove entire the key from registry hive.
These may help you to solve your problem.