Fatal error: Uncaught Error: Class "Astra_Customizer_Config_Base" not found in /var/www/andovercg/staging/wp-content/themes/astra/inc/customizer/astra-pro/class-astra-pro-upgrade-link-configs.php:17
Stack trace:
#0 {main}
thrown in /var/www/andovercg/staging/wp-content/themes/astra/inc/customizer/astra-pro/class-astra-pro-upgrade-link-configs.php on line 17