I have a contribution page set up which used to work fine until one of the latest CiviCRM updates. Now the page is blank:
But if I access that same page using it's non-SEF URL, it works fine:
I've turned on error reporting to Maximum and nothing is appearing.
I'm using Joomla 3.7.2 and CiviCRM 4.7.19 on PHP 7.0.16. But when I downgrade to PHP 5.6.30, the page appears OK. Are there any known issues with CiviCRM on PHP 7.0.16 ?