On 3rd of June, 2019, Apple announced their upcoming macOS as part of the WWDC keynote.
Starting with macOS Catalina, 32-bit apps are no longer compatible with macOS.
32 Lives uses 32-bit code which is not compatible with macOS Catalina.
If you wish to continue using 32 Lives, please continue to do so on macOS Mojave.
Early tests shows that while install would succeed,
the 32-bit part (which runs the actual plug-in) would fail - meaning your 32-bit plug-ins won’t work at all.
We will use this thread to update on the subject.
Update June 24 2019:
Apple released first Catalina public-beta.
32 Lives and any 32-bit app will break and stop working.