sparksgr on "[Plugin: Contact Form to Email] One Page In Theme Not Displaying On Mobile/Tablet"

Hi I am not a coder but currently putting together a website http://www.sparks4growth.com
I'm using WP v4.2.1 and WP-Multipurpose Theme.

All working well except one page: http://www.sparks4growth.com/contact/

This page displays on desktop (all browsers I've checked) when I click through from the Home Page --> Click button 'Start Growing Today' --> Contact but not on mobile or tablet it simply comes up with:

'Not Found. It looks like nothing was found at this location. Maybe Try a Search?'

The 'Contact' page is written (probably badly as by me not my coders) in HTML and inserting the 'Contact Form' from 'Contact Form to Email' Plug In.

Code follows does it need to be CSS, if so what would the equivalent code be? Is there a setting I've missed? I can provide the page code if that would help?

Many thanks

M

https://wordpress.org/plugins/contact-form-to-email/