Hello,
the most recent corona version will always run only on the last 3 macOS versions, as those are the ones supported by Apple itself.
Additionally, in order to have Team Render working properly, you need to have the same corona versions on all machines contributing to the TR.
So unless you're willing to downgrade to a corona version, which supported 10.13, this will not be something that would work in a stable manner.
Thanks for understanding,
Jan