Error on Smarty.class.php

Warning: require_once(/home/userid/public_html/ext/piwik/libs/Smarty/internals/core.load_plugins.php) [function.require-once]: failed to open stream: No such file or directory in /home/userid/public_html/ext/piwik/libs/Smarty/Smarty.class.php on line 915

anyone know bout this error?

Fatal error: require_once() [function.require]: Failed opening required ‘/home/userid/public_html/ext/piwik/libs/Smarty/internals/core.load_plugins.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/userid/public_html/ext/piwik/libs/Smarty/Smarty.class.php on line 915

Check to make sure the file was uploaded properly. Filezilla has a habit of dropping files during a batch upload.