[Plugin: Fast Secure Contact Form] http_referer & WPML

I’m using the plugin in cunjunction with the WP multilingual plugin (WPML) because our site is French and English.

The same site runs under https://2010.ptitslutins.org (FR) and under https://2010.littleelves.org (EN).

The contact form on the French domain work like a charm. The one on the English domain won’t submit, instead returning the “Invalid HTTP_REFERER domain” error.

How can this be fixed?

Thanks!