I see that this issue is 5 days old already.
I have the same problem. And I’m becoming totally discouraged.
I changed themes, though that also didn’t help at all. The blank page goes to: https://xxxxx.com/wp-admin/post-new.php just like sites I have that DO work, so that isn’t it(whatever ‘that’ is).
Unlike Wyro I don’t use Earthlink, which isn’t the problem anyway, since my other sites work normally.
What can we do? We need to add posts or our readers will evaporate.
jerice50
