Hi, I found this is related to an outdated virtuemart database format problem on deal plazza quickstart. To solve this you can go to virtuemart backend, go to 'Tools' page then click the 'Update vm2 order format of customfields to vm3 format
' button in the bottom right of page.
Please see this step by step video screencast showing how to do that :
www.dropbox.com/s/b2fo3fuy3zdf1iv/vmprob.mp4?dl=0