White screen after login

Since this morning my host have updated the php version to 5.525
My login screen is comming up normally but after login in I only see a white page
with nothing inside. Is there any solution for this?

I'am running an older version from cutenews with many mods/hacks but till yesterday
all was going fine but now after the php update the screen will staying blanco.

All help will be welcome.

Grt, Wim

UPDATE, I fixed this by installing the latest version.