Have you tried everything here?
If so, please post your stonehearth.log file (found in same folder as the stonehearth install) and someone may be able to narrow down the problem from there. As a new user, you probably won’t be able to upload it as a file, but you should be able to copy and paste the contents (it is just a text file, so open it up with notepad or some other text editor).
Also, please state as much about your computer specs as possible. Graphics card, CPU, windows version, etc. Good luck!