Warning: require(vendor/autoload.php): Failed to open stream: No such file or directory in /mnt/data/webdav.vreeswijk.eu/pino.secondstep.nl/phpmailer/get_oauth_token.php on line 16

Fatal error: Uncaught Error: Failed opening required 'vendor/autoload.php' (include_path='.:/usr/share/php') in /mnt/data/webdav.vreeswijk.eu/pino.secondstep.nl/phpmailer/get_oauth_token.php:16 Stack trace: #0 {main} thrown in /mnt/data/webdav.vreeswijk.eu/pino.secondstep.nl/phpmailer/get_oauth_token.php on line 16