After updating to 5.4.1, the nav bar on my site is messed up looking:

http://cumberlandcolors.com

Anyone know where to look to fix this, or is there a way to go back to 5.4.0.5? I don't really want to go back, but will if possible and can't get the nav bar working.

The theme is a freebe from:http://www.smartwebprojects.net/concrete5-themes/vistalicious/...

I will email them as well if they're not aware. I know it's a free theme, but if it does this for everyone then it's not really usable as-is and they'd probably want to know.