Publish Error

I am trying to publish the edits I made to my website and this is the message I get
"Publish Error" An unknown error occurred.
I don't know how to fix this.

Please help.

What software are you using? Where is your website hosted?

More info needed before we can help!

Publish my website

Hello Leukeh,
Thanks for your response. I am using iWeb on my Mac and I am with Google or HostMonster. I am uncertain because I mistakenly paid both for the same website.
I tried different things from reading sites and others seemingly having the same problem, and now it tells me i have the wrong password. I have changed the password trying to start over and that does not work either.
If you can help, I certainly appreciate it.
VooVooi