Cannot install Direct Link for SketchUp Pro 2021 on Mac

I get this error message when I try to install… “2021_DirectLink-SketchUp_Twinmotion_SU17-21_2020.75.5530.51_setup.pkg” can’t be opened because Apple cannot check it for malicious software. This software needs to be updated. Contact the developer for more information."
I also tried installing an earlier version of the Direct Link Plug-in, but it does not support SketchUp Pro 2021.

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I’m having trouble installing Direct Link for SketchUp Pro 2021 on my Mac. Has anyone else faced this problem? Any easy fix or tip would be really helpful. I’m having trouble installing Direct Link for Licensed Clinical Psychotherapist SketchUp Pro 2021 on my Mac. Has anyone else faced this problem? Any easy fix or tip would be really helpful.