The Site Properties Management application consumes an huge amount of Application Objects (99 AO total), and it's impossible to install it on an OutSystems environment with a dedicated license for LifeTime with a 60 AO limit.
I think it's possible to do a module cleanup and remove unused web references and entities to reduce this AO consumption. Some objects are not used anymore.
Thanks for the investigation, I'm on the middle of upgrading this component to use the new SDK and on the process I will do a clean up as you mention.
I will wait for the new version then.