Still having the same issue. Both on my desktop and my Smart device using my data plan. First saw the issue when trying to upload my latest league standings to the site using BLS 2016 v28.06.03 - got this error message:
Service Unavailable (503) -
Was able to post to bowl.com using the software without issues.
Tried again after your replies, still getting the same message from all locations, BLS2016 and directly trying to access the site with my browser.