If you did not upload the template file to the server, the contact form solution pack files would throw an error in the browser and no email would be received. 
I forgot to upload the Template folder, however, NO error was coming up and the emails were being sent. Every test mail I sent went through with no problem, despite the fact that the Template folder had not been uploaded to the server. Then I tried uploading the Template folder to see if that would correct the black background problem; It had no effect.


