musicalhelp on "Cannot Access My Site WP Admin"

Hello, I'm working away this afteoon and suddenly, I find I cannot access my site wp admin. I get a page indicating that my login is blocked. I can't figure it out, here's why: I have changed nothing. It is happening suddenly on all browsers. It is happening on all of my WP sites. I even uploaded a backup of one site by ftp overwriting the current files, still no fix.

Can someone please help me with this? and why just suddenly out of the blue when nothing has changed or happened, unless WP or a plugin did something without my knowledge?

What's the EXACT TEXT of the message you receive telling you you're blocked?

just a blank white page with the word "blocked" in the upper left coer

also, I cannot log into admin using any of the site users or any of my names.

When you go here, http://www.musicalhelp.org/wp-login.php you will see a link to help with cookies.