Marketpress - Whoops message on check out

hi,

i have marketpress, buddypress, multisite, chained payments, supporter on my site..

(i am using marketpress on the main site as well for my shopping cart for selling ads)
i am doing final testing on purchasing a products on my main site and everything seemed to flow properly until i got this "whoops" message.

flow:

i added items to my cart
entered shipping details
confirmed payment page
went to paypal, paid
came back to my site and confirmed order details
then it took me to this whoops page

thing is.. i got the order notification and the order shows as paid in the pending orders in the marketpress admin area. everything seems fine except that whoops landing page.

help?

thanks,
gina