Better WP Security breaks after domain change

I accidentally allowed my domain name to expire at godaddy, and could not retrieve it back unless I paid godaddy ilke $80 to retrieve it, so I had to let my wordpress domain (tcoburn.com) go

so I registered a new domain (tacoburn.com) so all files and databases are still the same. I got wordpress and all other plugins up and running ok, but better WP security seems to be broken when I activate it, wordpress admin area seems to want to go back to the old domain when I activate better WP security for some reason, and I don’t know how to fix this. my site still comes up with better WP security activated, but I can’t get to the admin area with better WP security enabled for some reason, so I have to leave the plugin disabled until I figure out how to get that function disabled manually and reset

does anyone know how to accomplish this?

thanks