Can't login to Joomla back-end

Lock-out for unknown reason Hi,

I've been working on this Joomla site for weeks now. All of the sudden, my login & passoword doesn't work anymore to get me into the back-end. I didn't change anything or update anything. It says "Username and password do not match' and I've gone into the phpMyAdmin on the host server to reset the password. It's still not working. The front-end is still visible. Any ideas?

Thank you.

Emily

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