Error during operation

Hello,

First thank you for your plugin.

Since few month, the plugin is broken. When someone try to register, a message appear : “Error during operation”. I’ve no error in my debug.log :-/

I don’t know how to fix this.

You can test here :
http://www.hypnose.fr/renseignements/newsletter/

Can you help me please ?

Thanks a lot 🙂

http://ww.wp.xz.cn/plugins/alo-easymail/