Widget page won't load after updating to WP 4.8

Posted in: Newspaper
Post count: 24

I’m running Newspaper 7.5 on one site and Newspaper 7.8.1 on another site. After updating them to WordPress v4.8, I can no longer access the widget page (siteurl.com/wp-admin/widgets.php) on either site. It is not a plugin issue as I have tried deactivating all plugins but still get the same error.

The site running Newspaper 7.5 loads a blank gray page.

The site running Newspaper 7.8.1 shows this error on that page: Fatal error: Call to undefined function mb_detect_encoding() in /home/servername/public_html/wp-includes/functions.php on line 3086

Post count: 24

Update: We were able to fix this by having our host activate “mbstring” for PHP on our server.

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