[Plugin: WP Autoresponder And Newsletter Plugin] It sends blank email

Hi

I have a little growing problem.

First, if I had put [!name!] in the subject box it would send blank email.

Then, I have removed [!name!] from the subject box and put it into the text body and it worked a period but then it started to send blank emails.

Now, no matter how I write it, it sends it blank.

I deactivated and reactivated the plugin but no difference.

What could be the problem and how could I fix it?