As of today it appears there's an issue with the SSL certificate owned by starcraftworld.net which is preventing some users from being able to browse the website. If anyone is getting an error stating the website is not trusted when trying to browse the site, this is the reason why. If you are here reading this post, then you are not affected by this issue.
It appears to be a problem on the part of the certificate providers. I've called support but their engineers are not available until Monday.
In any case, games played today that could not be reported due to this issue will be able to be reported when this issue is remediated, even after the 4 hour limit.