after upgrading to VM2 site appearing bank?

[Nadiahk]

i upgrade virtuemart from 1.1.9 in to 2.0 in joomla 1.5 but now all data is visible but site is appearing blank due to this error

Warning: require_once(/var/www/beta.hobbyprousa.com/components/com_virtuemart/virtuemart_parser.php): failed to open stream: No such file or directory in /var/www/beta.hobbyprousa.com/modules/mod_virtuemart/mod_virtuemart.php on line 25 Fatal error: require_once(): Failed opening required '/var/www/beta.hobbyprousa.com/components/com_virtuemart/virtuemart_parser.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/beta.hobbyprousa.com/modules/mod_virtuemart/mod_virtuemart.php on line 25

how to solve it? if i shift its db tables to joomla 2.5 then site will appear blank there