Please Help Me!

[Fallen]

So I followed the instructions on how to install the script onto x10hosting, and I was able to get through it all! However, when I went to view my site, Musings, I got these messages:

Warning: require(/usr/local/apache/htdocs/inc/smarty/Smarty.class.php): failed to open stream: No such file or directory in /home/musingx2/public_html/classes/class_mysidia.php on line 326

Warning: require(/usr/local/apache/htdocs/inc/smarty/Smarty.class.php): failed to open stream: No such file or directory in /home/musingx2/public_html/classes/class_mysidia.php on line 326

Fatal error: require(): Failed opening required '/usr/local/apache/htdocs/inc/smarty/Smarty.class.php' (include_path='.:/opt/alt/php55/usr/share/pear:/opt/alt/php55/usr/share/php') in /home/musingx2/public_html/classes/class_mysidia.php on line 326

I have absolutely no clue or idea what any of it means. Can someone please help me sort this out! Thank you so much!