Admin Locked Out of Website

Hi All,
I tried searching the forums for quick info about this, but could not find anything. So I need some quick help.

I'm using the membership plugin, and when trying to log in as the site admin, I get a message reading 'Sorry, this account is not active.'

Can I reset this in the database? Or deactivate the plugin through the DB so that I can access my site again?

Thanks in advance!
Shawn