Woocommerce activation triggers 500 Internal Server Error

Hi all,

Long time reader, first time poster…

I’ve installed Woocommerce on a site running the latest version of WP, using RT Theme-16. When I try to activate the plugin it triggers a 500 internal server error. The error is not site wide, and every other page works fine.

I checked the php error log, and this is some of what it had to say:

May 28, 20:37:43
PHP Warning: include_once() [function.include]: Failed opening ‘includes/abstracts/abstract-wc-integration.php’ for inclusion (include_path=’.:/usr/local/php-5.3.28/lib/php’) in /home/web/users/1845.siteurl/sites/siteurl/public_html/siteurlwp/wp-content/plugins/woocommerce/woocommerce.php on line 290
May 28, 20:37:43
PHP Warning: include_once() [function.include-once]: Unable to access includes/class-wc-product-factory.php in /home/web/users/1845.siteurl/sites/siteurl/public_html/siteurlwp/wp-content/plugins/woocommerce/woocommerce.php on line 293
May 28, 20:37:43
PHP Warning: include_once(includes/class-wc-product-factory.php) [function.include-once]: failed to open stream: No such file or directory in /home/web/users/1845.siteurl/sites/siteurl/public_html/siteurlwp/wp-content/plugins/woocommerce/woocommerce.php on line 293
May 28, 20:37:43
PHP Warning: include_once() [function.include]: Failed opening ‘includes/class-wc-product-factory.php’ for inclusion (include_path=’.:/usr/local/php-5.3.28/lib/php’) in /home/web/users/1845.siteurl/sites/siteurl/public_html/siteurlwp/wp-content/plugins/woocommerce/woocommerce.php on line 293
May 28, 20:37:43
PHP Warning: include_once() [function.include-once]: Unable to access includes/class-wc-countries.php in /home/web/users/1845.siteurl/sites/siteurl/public_html/siteurlwp/wp-content/plugins/woocommerce/woocommerce.php on line 294

The errors continue on like that for pretty much every line in woocommerce.php.

Is there anything I can do to fix the activation problem?

Thanks!