Subscription start date should be greater than current date - paypal payment

Update: solved.

It was my mistake, but: When upgrading a site from main website admin panel, subscription doesn't reflect on the upgrade plan Pro Site web, which leads to misunderstood. If that isn't an integration problem of my site, I would recommend to update the code.

Cheers,
Carles

Hi,
when using Pro Sites (Versión 3.0.3), paypal gateway fails.
All process looks ok until It returns to the website with an error on top:

There was a problem setting up the Paypal payment:
"Subscription start date should be greater than current date"
Please try again.

I've check time zone in wordpress and paypal (GTM +1 - Spain), and it looks correct, but for some reason it doesn't work.
Somewhere I've seen it should be a date picker, but I could not found it (it's only on old versions?). I'm using network theme.
Any idea? Can I modify the code in order to add 1 more day to the subscription (easy solution)? Or there is a bug that can be fixed?

Many thanks,
Carles