No data in GA even with tracking code correctly set up

Hi,
I use your plugin on different websites but I can’t make it work on this one ( https://viaggiareverde.it/ ). I checked this https://www.monsterinsights.com/how-to-check-if-google-analytics-is-working/ and my tracking code seems to be correctly set up, but I don’t have any data in Google Analytics even after few days.

Any idea?

Thanks

Kind regards

Luca

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