Hi @JVives,
Thank you for your reply.
Sorry it was deactivated.
What was deactivated?
We implemented the contact form by just adding the code from a wordpress contact form, just copy & paste.
WordPress doesn't provide any contact form. I think you may be using some contact form plugin like following and its shortcode.
http://wordpress.org/plugins/contact-form-7/
Could you please tell me exactly what you are using so that i can troubleshoot it?
Also please answer all of the questions that i have asked in my initial reply that will help me to get to the bottom of the issue faster.
Regards,
WPMU DEV