I had the same problem, I tried deleting the database and make a new one….did not work, I tried replacing wordpress with a fresh copy…did not work, I tried deactivating and even deleting all plugins…did not work.
Then I tried switching to the default theme. Like Mark/t31os said.
That worked, but when I switched back to my theme same white page when I pushed publish.
So now I knew I had to search in my own theme.I started uploading the original files from the theme I had converted to my own theme. I started with the ones that I did not alter. (At least that’s what I thought) but apearently I did. When I uploaded functions.php from the original theme and overwrote the old one it worked. No more white page.
