I have been building a store using eShop for over a week now. Using test mode going through all the checkout screens and using Paypal Sandbox just fine. No problems.
But i updated today to Version 6.2.9, and now when i press the "Proceed to Confirmation" in either test mode or live mode i just get a blank page with no system output under the page title.
All settings are correct, it should be working, but it is not.