Additionally... I visited your site and it appears the other add-on is not active? Have you not installed it? Whole point of my asking if you could still manually navigate to the contact us form was to see if that other addon allows that when active. I had assumed you had installed it and it was active.You must validate your XenForo license to see quoted content
It is perfectly safe to install it, then we can find out if it plays well with our addon.