I have 6 different amounts and an open donation box. When you fill out the form and try and submit to paypal you get this error.
"Invalid Regular period. You must specify valid values for the A3, P3, and T3 parameters for a subscription."
That's a new one First, are you using the latest release, which is 2.2.3 at the present? If not, upgrade as step one. If you ARE using the latest, submit a ticket with site access so we can see what is going on.