Can't Modify Headers Error as well
Hello Ray. I am getting the same error and am baffled.
Here is what I tried.
I downloaded the WA_Email.php from your response above. It did submit the form but didn't show the confirmation page and did not send the email.
I have added some customization to the email So tried an unaltered template and got the same response.
I have attached the form page, confirm page, table, error log, as well as the email we are using.
Any help is appreciated.