Problem with site?

Okay, the whole of today, I have hardly seen anyone on the forums, meaning it does not display people and then I have sent several pm's and only one ever went through and now other's have pm'd me because of posts I have done in threads and not one came through for me.

I even received a pm from one of the Mods, Wisdomtool, and I cannot see his message. It annoyingly pop's up on every page that I have a message, but when I go to it, it says:

Invalid Private Message specified. If you followed a valid link, please notify the administrator

and then I notified the admin via that link earlier. I guess there is a major problem with the site? Also lately it has been harder to log into the site and it takes up to 7 times for me to log in at times.

Anyway, I don't want to complain but I needed to get some things done today and I can't pm the people and they can't pm me. It poses a problem.