Reinstalled XP12 and now Simlink will not connect MAC

Greetings, I have been happily using Navigraph with Simlink on my Mac for several months. Today I needed to delete and reinstall XP12. I also deleted my Navigraph files and folders. Reinstalled XP12, then Navigraph and Simlink. I was never prompted to scan for a location of XP. Simlink just installs and then nothing. When I start XP12, Simlink does not launch. I cannot find where the settings are to provide a path. Please help. Thank you.

Please see my reply to you at Simlink in Plane 12 and MacOS - #4 by toddtt