contact form not working

I have a problem with the contact form on my template Garage.

When I give the submit button. With filled form fields, I return an error message like this:
Field mail: is required
Field mail: is not valid
Field Your message: is required

You can check my website here:
http://quatrerodes.hol.es/contactanos/

Thank you very much, and sorry for my bad English

Hi!
Try to delete the code:

<script>
	jQuery('.feedback input').each(function(){
		jQuery(this).attr('name','<?php echo $_SESSION['commentinput']; ?>['+jQuery(this).attr('name')+']');
	});
	jQuery('.feedback textarea').each(function(){
		jQuery(this).attr('name','<?php echo $_SESSION['commentinput']; ?>['+jQuery(this).attr('name')+']');
	});
 </script>

from the feedback.php file located in the directory of the theme.

Besides, we strongly recommend that you return the links to the footer while you are using a free version of the theme or stop using it.

Thank you very much the problem has been solved.
Now put the links visible again.