[2021] Paradox Luncher ENOENT starting Error.

In this folder are some .log files:
C:/users//AppData/Local/Paradox Interactive/launcher-v2/
Please attach them here.  

Was there no cpatch.log in that folder?

Try uninstalling the existing installation of Paradox Launcher v2 with the free utilities Ccleaner and Revo Uninstaller. Then also use MS's own tool for that job:

Fix problems that block programs from being installed or removed

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. support.microsoft.com
THEN do another clean reinstall:
- exit the Steam app entirely

Delete the following folders if still present:

- C:/users//AppData/Local/Programs/Paradox Interactive/
- C:/users//AppData/Local/Paradox Interactive/
- C:/users//AppData/Roaming/Paradox Interactive/launcher-v2/
To see the AppData folder you'll need to enable View Hidden Items in File Explorer.

- run steam.exe as the Windows Admin user

- run the game from the PLAY button in Steam  

That's unusual, I've never seen cpatch.log exist but be empty. If you delete it and run the game from Steam again does it get recreated?

And, any idea what change or update triggered this?