I am trying to make a simple_form with an input for attachment so that when users are done with completing the forms, it sends me a mail through Postmark.
I have been setting up attachinary and everything works fine in localhost but as soon as I push it on Heroku, then it fails. I get a "We're sorry, but something went wrong" on the page where attachinary is called.
Heroku logs : Screen of fatal errors
Thanks a lot for your help!