I am also experiencing the same issue after updating to the new version of the Yoast SEO plugin. The website and other websites on the server keep saying loading and just hang. When I deactivate Yoast, everything is back to normal and works again. I have tried your troubleshooting tips as above but nothing worked.
In the end I used the WP Rollback plug in and restored a previous version (15.0) of the Yoast SEO plugin and activated it. Everything is now working again.
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This reply was modified 4 years, 1 month ago by lplant93.
