When I click the link to add new post this error comes up.
Fatal error: main() [function.require]: Failed opening required '.../admin.php' (include_path='.:/usr/lib/php') in /homepages/0/d308704601/htdocs/wp-admin/post-new.php on line 10
I did the upgrade yesterday. It was working afterwards, but not today. So I tried to reinstall the upgrade and that didn't fix it.