Yoast made a critical error on my website

[khoanguyen0000]

• [*] I've read and understood the contribution guidelines.
• [*] I've searched for any related issues and avoided creating a duplicate issue.

Please give us a description of what happened.

After I activate Yoast, it crashes my site immediately.

Technical info

This is what Wordpress mailed to me

An error of type E_ERROR was caused in line 301 of the file /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/vendor_prefixed/j4mie/idiorm/idiorm.php. Error message: Uncaught Error: Class 'PDO' not found in /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/vendor_prefixed/j4mie/idiorm/idiorm.php:301 Stack trace:

0 /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/vendor_prefixed/j4mie/idiorm/idiorm.php(229): YoastSEO_Vendor\ORM::_setup_db_config('default')

1 /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/src/initializers/database-setup.php(52): YoastSEO_Vendor\ORM::configure('mysql:host=loca...')

2 /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/src/loader.php(145): Yoast\WP\SEO\Initializers\Database_Setup->initialize()

3 /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/src/loader.php(111): Yoast\WP\SEO\Loader->load_initializers()

4 /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/src/main.php(81): Yoast\WP\SEO\Loader->load()

5 /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/src/functions.php(26): Yoast\WP\SEO\Main->load()

6 /home/khoatnco/public_html/wp-content/plugins/wordpress-seo/wp-

• Which browser is affected (or browsers):
• [* ] Chrome
• [* ] Firefox
• [ *] Safari
• [ *] Other

Used versions

• WordPress version: 5.4
• Yoast SEO version: 14.0

• Tested with theme: Cenote

[Djennez]

@khoanguyen0000 What PHP version are you running and do you have the PDO module installed?

[khoanguyen0000]

@khoanguyen0000 What PHP version are you running and do you have the PDO module installed?

PHP version: 7.4.5 No, my website doesn't turn on the PDO module.

[khoanguyen0000]

I turn on the PDO and my website works again. Thank for the help. ☺

[omarreiss]

@khoanguyen0000 thanks! Could you share who is your webhost so we could reach out to them for others who encounter this problem?

[terfex]

I just ran into this issue as well. Fixed after enabling php74-pdo. It would be great to advise about this in the release notes.