Fatal error: Uncaught Error: Call to undefined function Automattic\Jetpack\Extensions\Mailchimp\add_action() in C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\extensions\blocks\mailchimp\mailchimp.php:48 Stack trace: #0 {main} thrown in C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\extensions\blocks\mailchimp\mailchimp.php on line 48