When i am uploading new theme it showing 500 internal server error therefore i am not able to install new theme and if i am trying to change header.php it is showing some warning related to fopen. warning is like: Warning: fopen(httpdocs\news/wp-content/themes/twentyeleven/header.php) [function.fopen]: failed to open stream: Permission denied in httpdocs\news\wp-admin\theme-editor.php on line 84 Warning: Cannot modify header information - headers already sent by (output started at httpdocs\news\wp-admin\theme-editor.php:84) in Chttpdocs\news\wp-admin\theme-editor.php on line 99 Code (markup):
i think there is some problem in your wp installation. some times files got damaged. so upload wp-admin folder and re-write its files and folders.
I have installed 2 times 2 different versions of WP but same problem persist there... I think there is some other problem...