FPDF error: [Error] https://gallery.mailchimp.com/07e8283ff03d8a2f57f455b54/images/86d63001-4c85-4098-a86a-4d7ec97c98bd.jpg Missing or Please turn on "allow_url_fopen" on your server to allow insert images in PDF Document, more info here: http://stackoverflow.com/questions/3694240/add-allow-url-fopen-to-my-php-ini-using-htaccess