Can’t get in contact with Theme Warrior who make this theme

I have been having HUGE issues with my wordpress site for a few weeks now. One.com has been helping me and now they say the issue is with the theme. The provider of the theme is Theme Warrior but I cannot fill in the contact form on their contact page. Is it just me? Is there another way to get in touch with them? I think I am close to fixing my website but I really need their help.

Thank you!

The page I need help with: [log in to see the link]