1. Login to your plesk/cpanel, whatever you use. Locate
wp-admin/media-upload.php
Open the media-upload.php with the code editor scroll down to line #125 and change the code
if ( ! empty( $_REQUEST[‘post_id’] ) && ! current_user_can( ‘edit_post’ , $_REQUEST[‘post_id’] ) )
to
if ( ! empty( $_REQUEST[‘post_id’] ) && current_user_can( ‘edit_post’ , $_REQUEST[‘post_id’] ) )
Make sure you don’t touch line 126 with a code that looks like this wp_die( __( ‘Cheatin’ uh?’ ) );—– DON’T TOUCH THIS
Save and get back to your wordpress admin panel, make sure you have cleared your cache and this should do it. Let me know if you have any other fixes.. Good luck..