Hi fHawaii,
First off, I’m assuming that you mean the browser popup window that displays on page load.
I’m by no means a guru, but to me it looks like a server issue. The images directory is being password protected via your .htaccess file. Contact your webhost and have them remove the protection, and I’m guessing that you’ll be back up and running!
Beyond that, it looks like you’re having a bigger issue with some remaining code from the widget. When I try to load your /wp-admin/ directory, I don’t get the same pop-up, but I do get the PHP error:
Warning: array_keys(): The first argument should be an array in /home/content/c/u/z/cuzzo/html/beta/wp-includes/widgets.php on line 1045
Once you have the server/password problem corrected, it should be pretty easy to dig around and see what’s going on with that.
