Invalid Regular period. You must specify valid values for the A3, P3 and T3 parameters for a subscri

I have 3 membership levels and for 1, I want to offer a lifetime subscription for 100 years.

The montly and annual work fine, but for the 100 years it says

Invalid Regular period. You must specify valid values for the A3, P3 and T3 parameters for a subscription.

This is using the paypal express gateway.

What settings do I need to add to remove this error?