Marketpress and Pods Framework

Hello,

I want to create a customizer Feature for my online Shop where people can purchase items that are completely individual. For example, a white chocolate with strawberries and apples.

Like in this shop: http://www.chocri.de

To do so, I want to add additional Fields using the pods framework to the store's products.

However, when I activate the Pods Framework and Marketpress simultaneously, I receive a nasty error:

( ! ) Warning: Invalid argument supplied for foreach() in /Users/user001/Documents/Websites/sandbox34-001.dev/wp-includes/query.php on line 1700
Call Stack
# Time Memory Function Location
1 0.0018 456556 {main}( ) ../admin.php:0
2 0.0020 473160 require_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-load.php' ) ../admin.php:30
3 0.0022 488904 require_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-config.php' ) ../wp-load.php:29
4 0.0028 571900 require_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-settings.php' ) ../wp-config.php:100
5 0.3879 35196628 include_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-content/plugins/pods_/init.php' ) ../wp-settings.php:169
6 0.3933 35691456 pods_init( ) ../init.php:112
7 0.3966 36042408 PodsInit->__construct( ) ../functions.php:1366
8 0.4197 38093664 PodsMeta->init( ) ../PodsInit.php:65
9 0.4197 38093876 PodsAPI->load_pods( ) ../PodsMeta.php:53
10 0.4224 38164752 get_posts( ) ../PodsAPI.php:3493
11 0.4225 38170420 WP_Query->query( ) ../post.php:1461
12 0.4225 38172172 WP_Query->get_posts( ) ../query.php:2941
13 0.4225 38172252 WP_Query->parse_query( ) ../query.php:1920
14 0.4227 38178272 WP_Query->parse_tax_query( ) ../query.php:1539

( ! ) Fatal error: Call to a member function get() on a non-object in /Users/user001/Documents/Websites/sandbox34-001.dev/wp-includes/query.php on line 27
Call Stack
# Time Memory Function Location
1 0.0018 456556 {main}( ) ../admin.php:0
2 0.0020 473160 require_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-load.php' ) ../admin.php:30
3 0.0022 488904 require_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-config.php' ) ../wp-load.php:29
4 0.0028 571900 require_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-settings.php' ) ../wp-config.php:100
5 0.3879 35196628 include_once( '/Users/user001/Documents/Websites/sandbox34-001.dev/wp-content/plugins/pods_/init.php' ) ../wp-settings.php:169
6 0.3933 35691456 pods_init( ) ../init.php:112
7 0.3966 36042408 PodsInit->__construct( ) ../functions.php:1366
8 0.4197 38093664 PodsMeta->init( ) ../PodsInit.php:65
9 0.4197 38093876 PodsAPI->load_pods( ) ../PodsMeta.php:53
10 0.4224 38164752 get_posts( ) ../PodsAPI.php:3493
11 0.4225 38170420 WP_Query->query( ) ../post.php:1461
12 0.4225 38172172 WP_Query->get_posts( ) ../query.php:2941
13 0.4231 38179156 do_action_ref_array( ) ../query.php:1922
14 0.4231 38179780 call_user_func_array ( ) ../plugin.php:484
15 0.4231 38179824 MarketPress->handle_gateway_returns( ) ../plugin.php:0
16 0.4231 38179872 get_query_var( ) ../marketpress.php:546

How can I use Marketpress in combination with the Pods Framework?

Thank you for any suggestions.

PS: I am using Mac OS X 10.7 Lion and I use the Serverpress.com DesktopServer Premium on my Development Machine