Got the email now, twice at the same time ... the messaging system maybe took a nap Thank you.
I checked your sites (which, again, seem to be public and indexed by google: I don't understand why you keep them secret on this public request for help)
Anyway I see no issues there. My Firefox does not complain about one of the two and the other one seems to load one item (a png file) from http instead of https, therefore Firefox correctly throws a warning that parts of the page are not secure.
Other checks you can run:
I also run https://www.sslchecker.com/sslchecker and I see no issues there either...
Since you're so secret about your public domains, I can't help you further. Open a ticket with DreamHost customer support and provide screenshots and all information necessary to understand and replicate the issue.