Thanks for your positive feedback.
Please have a look at our wiki: https://gitlab.com/KevinRoebert/ClearUrls/wikis/Interface/1.-Version-1.2.1.x

You have to activate the "Logging". Only then the "Log" button will appear in the UI.

Edit: If you can open the settings, replace the "settings.html" with "log.html" and you will be on the log page. But you must still activate the "Logging" function to see an entry.