Installed new version - no QSOs

[IW3HMH]

Where do you saved the log database?

Log4OM keeps the configuration between installations. The worst thing that can happen is to have a problem when you reload the config file that force you to re-set the software or recover from a backup.
But your log file is never removed. Some users had troubles because they saved the database in the same folder of the .exe (c:\program files...) and this is not a wise choice for any software.

Anyway, you should have the .sqlite file in your PC.