Journler looks like more or less of a dead issue, although it's still twitching.
It was open-sourced on GitHub in 2011 (GitHub - phildow/Journler: The Journler open source project
), and it hasn't been updated since then, so it's only 32 bit and won't run in Catalina
A MacUpdate poster reported that it runs in Mojave (Journler for Mac]
), so if you really need to get into the app you'll have to install an older version of macOS.