Pro Sites Upgrade screen blank

Hi There

I upgraded to the the latest pro sites. It looks like everything is still working, except the [Your Account] screen. If I click on it, It is just a blank screen. What it basically means is that my members cannot upgrade. I have a 21 day free trial and after that they have to upgrade.

Thanks

Update:
I found the problem. If I disable free trials and enable it again, it works. I will test with new sites.