There is! Take a look at the bug reports category (http://discourse.stonehearth.net/c/support/bug-reports) here on the discourse. That is where anyone (you included) can post bugs that are found in the game. If you want to read more about previous/resolved bugs, check out the other sub categories in the support section. If you need to post a bug yourself, please try and use the template located in the pinned thread
as it helps to ensure that you provide as much information as possible for the devs.