Why do I get this message

Being new here I am just learning. Please be patient. Can someone tell me why I get this message?

moneillmills, you do not have permission to access this page. This could be due to one of several reasons:

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?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation

I am trying to reply to Greenvilletoker's post

I have nothing to do with anything, but, I don't know. Try posting in the Feedback & Suggestions forum.

You get that message when there is a lock on the thread. That means Mod has closed it for a reason and no one else can post on it.