I’m thinking it has to be something to do with my hosting service. I run another WP site with the same host so I tried this plugin on there too which has completely different settings & everything… and I got the same error message. Guess I’ll try to figure out a way to host the site elsewhere and do a redirect so it works.
Some more things I’ve tried:
-Different WP themes including the classic theme.
-deactivated all other plugins
-deleting and re-adding posts