Html error when submit....

Hi, When I only enter the email address and press submit, I get a html error or bug.

I attacth a print screen.

This is the website: http://itmtechservices.com/servicios/instalacion-y-reparacion-de-pcs


Thanks,
Jose

Hello and thank you for posting.
This forum is not actually supposed to support Rapid Contact, but as this is a general issue, I will address it here.

This is actually caused by a combination of things.
If you include Rapid Contact (or any other form that shows an email) into a Joomla article (or any position that is affected by content plugins), then a Joomla plugin named "Email Cloaking" tries to hide your email address from SPAMbots, adding code that is irrelevant to Rapid Contact. This behavior is generally not useful, unless you want to specifically write email addresses in your articles, but hide them from SPAMbots.

This is easily solved if you disable the plugin, or use Rapid Contact in a normal module position.
Thanks again.