Update page (update-core.php) & Plugins page (plugins.php) revert to homepage

I’ve since found my own solution: Delete the .htaccess file in the WordPress root directory. I’ve written more details in a post on my blog at cellepo.com.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)