Warning: Unsupported declare 'strict_types' in /var/www/html/push-notification-service-v2/vendor/theseer/tokenizer/src/TokenCollectionException.php on line 1

Fatal error: Class 'TheSeer\Tokenizer\Exception' not found in /var/www/html/push-notification-service-v2/vendor/theseer/tokenizer/src/TokenCollectionException.php on line 4