Locked out of my own forum

[sydgrew]

I am the founder and owner for ten years of the Art-Music Forum (http://artmusic.smfforfree.com/index.php). But I have been locked out of my own forum!

In a thread entitled "Administration Password", full of falsehoods, Cairnwell writes that he has "now changed the password". This was impossible because I was the only person who knew the password for the Admin account. So what really happened? The only way he could have "changed the password" is by some hacking or trickery.

Ever since that day (1st October) I have been unable to log on either as Admin or as Sydney Grew. My IP address has been banned and when I try to re-register I am told I am a "known spammer". Known by whom?

It should not be possible for a forum owner of ten years standing to be locked out in this way. Please can something be done to restore my rights?