This is my first post so I would be grateful for the support. I recently updated to 3.5 and now cant upload media and get an error at the top of the page in admin constantly.
Warning: strpos() expects parameter 1 to be string, array given in /home/username/public_html/wp-includes/media.php on line 904
Warning: Cannot modify header information - headers already sent by (output started at /home/username/public_html/wp-includes/media.php:904) in /home/username/public_html/wp-includes/option.php on line 568
Please could someone advise?