Warning: require(config.php): Failed to open stream: No such file or directory in /var/www/ringelister/hubspot/editPortalSettings.php on line 21

Fatal error: Uncaught Error: Failed opening required 'config.php' (include_path='.:/usr/share/php') in /var/www/ringelister/hubspot/editPortalSettings.php:21 Stack trace: #0 {main} thrown in /var/www/ringelister/hubspot/editPortalSettings.php on line 21