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Hello everyone.
I’ve tried everything and can’t get rid of the JSON error. I’ve tried that completely: https://www.wpbeginner.com/de/wp-tutorials/how-to-fix-the-invalid-json-error-in-wordpress-beginners-guide/
Among other things, I deleted all caches, deactivated all plugins and reinstalled WordPress, but the error still occurs. But what surprises me is that there are no errors on the main site!
I can’t even restore a backup because I don’t know when the error started.
Thanks for help, Klaus Wilde
The page I need help with: [log in to see the link]