Warning Messages When Posting/Updating a New Page

I keep getting these warning messages when i update or make a new Page. (Doesn’t happen with Posts, and I can Preview Pages just fine)

Warning: file_get_contents(/home/hosting_users/juweonnago/www/wp-content/themes/victoria/css/index.php) [function.file-get-contents]: failed to open stream: Permission denied in /home/hosting_users/user/www/wp-includes/class-wp-theme.php on line 933

Warning: Cannot modify header information – headers already sent by (output started at /home/hosting_users/juweonnago/www/wp-includes/class-wp-theme.php:933) in /home/hosting_users/user/www/wp-includes/pluggable.php on line 881

class-wp-theme.php line 933 shows:
if ( ! preg_match( '|Template Name:(.*)$|mi', file_get_contents( $full_path ), $header ) )

I should note that even though i get these warnings, the changes still go through. But it’s annoying to have to click back and refresh the page to re-edit every time. Please and Thanks!