Unable to open iMovie on Catalina

So when I launch iMovie on Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina 10.15.6 I get the below - I have updated, uninstalled and reinstalled from the App Store but still nothing.... Any Ideas

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https://preview.redd.it/k8wxxfscrnq51.png?width=1010&format=png&auto=webp&s=b8ca317ab8f03cff235b737bd96638d181497303