So , there is my problem.
When I want to update post , and click update , my bworwser shows me only blank page. It’s same when I want to save some settings.
I saw that lot of people had same problem , but I couldn’t solve my problem.
Just saw your post as I was having the same issue tonight. There’s loads of people on forums saying to go into the database and delete a .tmp entry. But one of the commonbest causes of this issue which nobody ever thinks of is that there’s some white space in your functions.php file. So if you have a stray line or two underneath your closing ?> tag delete them all so that your final line finishes with the ?> upload the file and then it may well cure the annoying white screen issue.