Upgrade Error: 1.5.6 to 2.0.1.1

[gpearson]

Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53

Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57

Uninstalled all modules on version 1.5.6, backed up database, copied 2.0.1.1 files over installation and ran the install script. Upon clearing cache received error on accessing admin page.

[gpearson]

Upon clearning the cache for a second time. The same error is happening on line 51 and 57 of /www/system/startup.php

[gpearson]

Also unable to login to the admin interface. After entering the Admin Username/Password the application stops with:

Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 53Notice: Use of undefined constant DIR_MODIFICATION - assumed 'DIR_MODIFICATION' in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/startup.php on line 57Warning: Cannot modify header information - headers already sent by (output started at /var/www/virtuals/ww2.thunderkingfireworks.com/www/admin/index.php:80) in /var/www/virtuals/ww2.thunderkingfireworks.com/www/system/library/response.php on line 12

[ghost]

New to OC. Getting same error. Any help?