Fatal error: Uncaught Error: Call to undefined function Automattic\Jetpack\Extensions\Premium_Content\add_action() in /home/kacperg/public_html/kacpergr/wp-content/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/include.php:35 Stack trace: #0 /home/kacperg/public_html/kacpergr/wp-content/plugins/jetpack/extensions/blocks/premium-content/_inc/access-check.php(10): require() #1 {main} thrown in /home/kacperg/public_html/kacpergr/wp-content/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/include.php on line 35