Fatal error: Uncaught Error: Call to undefined function Automattic\Jetpack\add_action() in /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/3rd-party/class-salesforce-lead-form.php:21 Stack trace: #0 /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/3rd-party/class-salesforce-lead-form.php(147): Automattic\Jetpack\Salesforce_Lead_Form::initialize() #1 {main} thrown in /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/3rd-party/class-salesforce-lead-form.php on line 21