Error message after updating to WP 5.5

After updating WordPress to version 5.5 and Yoast SEO Premium to version 14.8.1 (same error with version 14.8) I couldn’t access any backend editing page, for example the Post editing page.

I think the error is somehow related to the “SEO Title” column, so any page where this column is present doesn’t work. By “it doesn’t work” I mean that when I go to that page I see the plain HTML source code of the page, truncated at the “SEO Title” column output.

The error reported at the bottom of the HTML source code is:
{"type":16384,"message":"The \"WPSEO_Replace_Vars\" service is private, getting it from the container is deprecated since Symfony 3.2 and will fail in 4.0. You should either make the service public, or stop using the container directly and use dependency injection instead.","file":"\/opt\/bitnami\/apps\/wordpress\/htdocs\/naturalsalus\/wp-content\/plugins\/wordpress-seo-premium\/vendor_prefixed\/symfony\/dependency-injection\/Container.php","line":251}

I temporarily solved the problem by editing the file mentioned above and commenting out the if block present at line 251.

Can you please help me solve this issue in a more adequate way?

Thank you,
Andrea

• This topic was modified 4 years, 6 months ago by rs1project.