Success message not showing after I activated Google Analytics Demographic data

I’m using Yoast Google Analytics (with Universal Analytics enabled) along with CF7 to track my messages as events, with the following code on CF7 form aditional settings:

on_sent_ok: "ga('send', 'event', 'Contact Form', 'Message Sent');"

Few days ago, I activated the option “Enable Demographics and Interest Reports” in Yoast Google Analytics plugin.

And now the contact form success message doesn’t show up anymore. The error messages are ok. I tried to deactivate the option on YGA plugin, but still no results.

Do I have to change anything on this code?

https://www.ads-software.com/plugins/contact-form-7/