I just installed 3.0.1 and got this error, anyone know what it is?? Warning: require_once(/home/nowtheen/public_html/blog/wp-content/plugins/jetpack/functions.twitter-cards.php) [function.require-once]: failed to open stream: No such file or directory in /home/nowtheen/public_html/blog/wp-content/plugins/jetpack/class.jetpack.php on line 748

I dont even have something called "twitter-cards" on my site, why would it be looking for it?