Page views (Seitenansichten) are double tracked

Hey, we seem to have a problem with out matomo implementation, it shows that the Pageviews are double the amount of the definitive Pageviews (eindeutige Seitenansichten) which usually is a problem when the tracking Code is implemented twice for ecample. as far as I know this is not the case for us though. Could you maybe give us some pointers where our problem could come from?

It is a wordpress Site and we use Cookiebot and this Matomo plugin for the implementation
wp-piwik (Connect Matomo)
(Plugin is also used on another wordpress site where it all works so it should not be the Plugins fault.)

We would be glad for any help, thank you!

The Site is dentalwelt(dot)spitta(dot)de