Recently there was a software update on the server, it appeared to have broken the forum for logins. It may or may not be fixed now (I just discovered an issue while trying to post this)
If we are unable to fix the issue and logins are still not working for Admin and Users, (I was able to login because of an Auto-Login session that was still "live) We're discussing whether to launch a new forum (which would replace the PPETEN home Page) or just let the forum and hosting expire.
We'll see what happens as we go, and if this post goes through, I will try to update it as we progress on the decision making (It'd mean some radical changes and the "pretty design" and logo would go away.)