Hi there, I have read the discussions on https://premium.wpmudev.org/forums/topic/upfront-contact-form-error-unknown-contact-form and https://premium.wpmudev.org/forums/topic/upfront-contact-form-error-unknown-contact-form-1 and I am still having issues. I have disabled all my plugins, I am just running upfront theme, Spirit to be exact. When I use my contact form I get "Unknown Contact form" error. Also if I check my browser inspector I see that I have a 500 Internal Server Error. The other bit of info I can give you is that when I try to add an API for Google Maps to the Upfront > General I get a meesage that says "Sorry, you are not allowed to access this page." I am not sure if Defender is causing this error through a specific setting even though it is off? I will grant you access to take a look.