I'm hopeful the issue described here might explain your crash — let me know if you get a chance.
Forum images do need fixing... so many things all at once! 🙂
Re uninstalling... please don't go so soon! 🙂 But whether you do or not, I agree it's important to be able to uninstall fully. I have added a todo to my list to create a support document on that topic.
For now, if you wish you can uninstall the helper through the app preferences, and remove other files at the locations mentioned here: https://indigostack.app/docs/help/faq/#q-where-does-indigo-install-its-services