My b2evolution Version: 1.10.x

I just upgraded my wife's blog to v2.4.1 from v1.10.2, and now when I try accessing the site - www.stylefool.com -- I'm getting the following error:

Fatal error: Call to a member function on a non-object in /home/content/c/h/l/chloeyoda/html/index.php on line 59

Any suggestions on how to correct this problem?

Thanks

RocketDude