What is My Fault?

I've been only here for a very short time (only posted 3 times) but suddenly there is limitation to my account. When trying to post, my post was moderated while it didn't happen a few hours before. I can't access My Profile and there is this warning from VBulletin Message :

"Kanaya, you do not have permission to
access this page. This could be due to one
of several reasons:
1. Your user account may not have sufficient
privileges to access this page. Are you trying
to edit someone else's post, access
administrative features or some other
privileged system?
2. You may be trying to access a gender-
specific page. Please read the FAQ for more
details.
3. If you are trying to post, the administrator
may have disabled your account, or it may
be awaiting activation."

I don't think I have ever done any of them. So
I am confused, what is my fault? I just posted 1 reply in this thread :

If mother curses : http://www.sunniforum.com/forum/show...t=curse+mother

And made two threads :

Adam and Original Sin : http://www.sunniforum.com/forum/show...d-Original-Sin

Is There Ghost In Islam? : http://www.sunniforum.com/forum/show...Ghost-in-Islam

I don't think I have ever posted something inappropriate, curse another member, or anything bad. So, where is my fault?
It started to happen just a moment ago. When I tried to reply in "Is There A Ghost in Islam?" forum, my reply was moderated, while as I have stated above, just hours before that, when posting "Is There A Ghost in Islam?", I was not moderated.
Please anyone tell me what is wrong with me so I can fix it and be a better member. Thank you