Errors with the current version (v.1.09): 

We are aware of the following errors and are working to fix them. Python error message after pressing Start: Server returned HTTP code: 404 or 'NoneType' object has no attribute 'route'  or   (after a while):  Internal Server Error

Sometimes going back and trying again may make it work but it's clearly super annoying.

If you want to be notified after we've fixed it, leave a comment.

If you desperately  need a model now contact us as Geofablab@gmail.com and we can probably create it for you. 

Thanks for your patience!