Email subscriptions sending multiple messages / Twitter posting not working

Hi,

My name is Alex Silva, I installed EasyBlog around two months ago and the basic functionality of the blog works fine. You can see it here: http://sgfotografos.com. I recently enabled the email subscription option and proceded to subscribe to my blog using a personal email address.

My first problem is: Whenever a post is published I receive multiple email notifications about a new blog post. The first time it was around 3 messages, then 5 and today I received 64 notifications related to one post and 32 about another one.

What can I do so that it only sends one mesage?

Second problem: I enabled automatic publishing on Facebook and Twitter, enabling bitly. The posts show up on Facebook and bitly shortens the link, saving it as a bitlink, but the posts don't show up on Twitter.

What can I do so that the posts show up on Twitter?

I'm running a multilingual site (en-GB, es-ES) using
Joomla 3.3.6
PHP 5.3.28
EasyBlog 3.9.18613
MySQLi 5.1.68-cll-lve

Thanks in advance,