When I subscribe to the Newsletter, I get shown an error message in the frontend:
"There was a problem with the subscription"
However, the Email was added successfully to the Newsletter Subscribers in the backend, and the test Newsletter I made was sent successfully to the email.
Any idea why this could happen?
I'm using Magento ver. 220.127.116.11 (Bitnami-Magento running on Amazon EC2).
Can you provide the exception.log file after getting that error message?