Fatal error: Uncaught Error: Call to undefined function Automattic\Jetpack\Dashboard_Customizations\add_action() in /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/modules/masterbar/nudges/bootstrap.php:60
Stack trace:
#0 {main}
thrown in /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/modules/masterbar/nudges/bootstrap.php on line 60