"Your Purchase is not allowed.
We're sorry, but your buying privileges to this vendor's products have been removed by the vendor. Please contact the vendor for further information if you feel this is incorrect"
I have been unable to contact vendors so far, have tried to join a Facebook page for one & still waiting for approval.
It appears that I`ve done something to cause JVZoo to block all or any purchases as I can still buy via Paypal but not in JVZoo.