I love this testimonials plug-in, but am having trouble with the thank-you page after someone submits a testimonial through the form. I entered this URL: http://www.airshowmastering.com/thank-you/
But the page shows up with this message:
Warning: Cannot modify header information - headers already sent by (output started at /home/davgla18/airshowmastering.com/index.php:1) in /home/davgla18/airshowmastering.com/sandbox/wp-content/plugins/hms-testimonials/shortcodes.php on line 268
The testimonials are being saved, but the user is getting an error message instead of a thank you.