Me having the same issue as well. This version seems not to be compatible with PHP8.1. Upgrading to this Yoast SEO version made my entire website down, including wp-admin, plugins, front-end.
https://ibb.co/jr6S38N
https://ibb.co/LrzNDD9
Hi @deroderuiter, @it4craigslist, and @butterflymedia
At the moment, we do support PHP 8.0. We are also working towards PHP 8.1 compatibility, however, as of now, WordPress and Yoast SEO are not yet fully compatible yet with it.
Once the specific version is supported all of our customers and users will be informed, via our newsletter and changelog updates.
The current workaround would be to downgrade PHP to v8.0 version.
If you are interested in learning more about PHP 8 compatibility, please have a look at our 2020 WordPress and PHP 8 compatibility reports.
There’s also an open issue on GitHub here.
Thank you for your understanding and patience.
We are going ahead and marking this issue as resolved due to inactivity. If you require any further assistance please create a new issue.
It is resolved in 17.9. This was a Yoast SEO plugin issue, not WordPress.
