User Unable To Sign Up For 3 or 12 Month Pro Site Subscriptions

Hello,

Using Pro Sites, my new users are unable to purchase subscriptions for the 3 or 12 month options. When they select 3 or 12 and enter their payment info, and then click Subscribe, the page just refreshes.

I am using the original pricing display, not the new pricing table option. I am using Stipe as my payment gateway.

Also, I tried to just deactivate both the 3 month and the 12 month option in the Pro Sites setting panel, to avoid the confusion. But when I do uncheck 3 and 12 month, the 1 month does not show up (there are no payment options). I have to have at least 2 selected for any to show. is there a way to just show the 1 month option?

Thanks,
Chris