This error is due to a limitation in the Google My Business API where a business or brand with over 10 locations (as determined by Google's own internal processes to detect chains) cannot use the post feature. This also means that StoryChief cannot post to Google My Business. There's nothing we can do as the limitation is from the API itself.
Google is experimenting with the best way to roll this feature out to larger chains/brands. Perhaps this restriction will be lifted in the future and we can post to Google My Business again.