Magento backend showing blank pages after login?

Question

I have magento 1.9 version and It is working fine on local and demo server but when I move this to live server its admin is not working.It just login admin and only header and navigation bar shows up there. I tried with remove cache, sessions.disabled all newly installed extensions.but still same problem.My frontend is working fine. Please help me to solve this issues.

Answer 1

This error was coming due to some entries in table "adminnotification_inbox" . I don't know why this happened.I just empty this table and my admin works fine but as soon as this table have entry same problem occurs, So After empty that table I disable admin notification from following location:-

System->Advanced->Disable Modules Output

Mage_AdminNotification

This solved my problem.

Answer 2

flush your magento root /var/cache folder and /var/session folders, It may have previous server session that may cause problems.