blank page on upgrade

[newvision]

After I run install and hit the submit button after entering the language, I get a blank page. Here is the error log from the server. Wheat does this mean?
[Sat Jun 26 14:08:22 2010] [error] [client 66.37.88.229] PHP Fatal error:  Cannot redeclare class Orders in /home/youngevi/public_html/modules/CartMadeSimple/library/orders.api.php on line 2, referer: http://www.youngevityvirginia.com/install/upgrade.php
[Sat Jun 26 14:07:41 2010] [error] [client 66.37.88.229] PHP Fatal error:  Cannot redeclare class Orders in /home/youngevi/public_html/modules/CartMadeSimple/library/orders.api.php on line 2, referer: http://www.youngevityvirginia.com/install/upgrade.php
[Sat Jun 26 14:07:36 2010] [error] [client 66.37.88.229] File does not exist: /home/youngevi/public_html/404.shtml
[Sat Jun 26 14:07:36 2010] [error] [client 66.37.88.229] File does not exist: /home/youngevi/public_html/favicon.ico
[Sat Jun 26 13:55:08 2010] [error] [client 66.37.88.229] PHP Fatal error:  Cannot redeclare class Orders in /home/youngevi/public_html/modules/CartMadeSimple/library/orders.api.php on line 2, referer: http://www.youngevityvirginia.com/admin ... _=6b027fe7
[Sat Jun 26 13:42:29 2010] [error] [client 66.249.71.100] File does not exist: /home/youngevi/public_html/404.shtml
[Sat Jun 26 13:42:29 2010] [error] [client 66.249.71.100] File does not exist: /home/youngevi/public_html/robots.txt

[Dr.CSS]

Apparently CartMadeSimple is not set up for the latest version of cmsms, you may want to make a bug report to the module developer on the modules forge page...

[calguy1000]

Posting your issues twice without any information for us to help you with will just get you ignored twice as long, or worse.

[Peciura]

Do you have Orders and CartMadeSimple at the same time ?
If so remove either CartMS or Orders; the same thing concerns Products and ShopMS.

Also bear in mind ShopMS and CartMs is not compatible to CMSms 1.7+ yet.

[calguy1000]

it's okay, I already banned him.