Subscription Problem Nexus and Paypal

[THL]

I've suddenly started having errors with member subscriptions.

When they go through to the paypal payment via the forum they receive this message

Invalid first trial period. You must specify valid values for the A1, P1, and T1 parameters for a subscription.

 

Any suggestions on whats happening?

Thanks

[ehren.]

How did you find out about this? Did a member report it?

I've gone from roughly 10 orders a day to 0 in the past 16 hours.. Not sure if I have the same issue or not.

[THL]

Members reported this, then i created a test member account and tried to donate myself and it came up with the above error.

[THL]

I've noticed renewals work fine and classifieds work fine when processing payments.