i have this problem after the last two updates of the plugin. When you write the e-mail and hit Subscribe you don’t see the confirmation text but blank page. The subscriber receives all e-mails. How I can fix this with the blank page?
I want to add some more information about the subscription problem:
At least since the lastest version ( 4.6.6.) all users are being redirected to the “404 page” after clicking the “subscribe”-button.
The result is the same if the default-newsletter-dedicated page ist being used for the confirmation message or a if an alternative custom page ist being used. And the email of the subscriber is not being stored in the database – the subscription is completely lost.
I solved the problem for the moment by going back zu newsletter-version 4.6.1, and now everything works fine again. (I have not testet the versions between, as it seems, that the bug is there since about 3 weeks. (unfortunately nobody complaint about this until today, that he could not subscribe).
This problem occurs on all installations, that I was able to check.
Therefore it seems to be a very serious problem