Event not firing…?

I’m having trouble with a form (<https://vr-expert.de/kontakt/”>this and this one).

Tried in GTM and now with your plugin. (help much appreciated, 3rd workday spent on this… Argh.) I have:
1. UA linked to both sites: measures pageviews correctly.
2. My GTM tags did fire (in debug mode), but didn’t get through to GA.
3. Now with the plugin, same thing.

————————–
Settings in GA goal
————————–
Category is “Contact Form”
Action is “Send”
Label is “CF7-1”
Value is [empty]

What could be the hiccup preventing the event from coming through?

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