GD Star Rating not working on mirror site.

I have a WP site that is mirroring all content from a main website. The plan is to build several mirror sites sharing exactly the same content.

I am not worries about the SEO implications.

Everything is working except this one thing. Instead of star ratings on comments, I get:

GD Star Rating
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MAIN SITE https://zazzoid.com/shutter-island-2010/2010/02/ WORKS
MIRROR https://tvdl.biz/shutter-island-2010/2010/02/ NO RATINGS

Does anybody have an idea where I should be looking in the code to fix this?

Thanks,

Derek