Tracking not working

Hi,

First of all I love the simplicity of the plugin!

I installed the plugin, put the GA code in, ticked to not add it (it is already implemented with the theme) and verified that it is the universal code.

We are using the bridge theme which is using the visual composer. After setting up the click events I would like to track I put the IDs in the buttons shortcodes.
I flushed all caches and did the test by clicking the button and checking realtime events in GA, but it does not show anything.

Idea where the mistake is?
I put the code on the book button of THIS page for example.

Cheers,
Felix

https://wordpress.org/plugins/wp-google-analytics-events/