Fatal error: Class 'Doctrine\DBAL\DBALException' not found in /var/www/html/dev/spa/vendor/doctrine/dbal/lib/Doctrine/DBAL/ConnectionException.php on line 28

Call Stack:
    0.0003     235392   1. {main}() /var/www/html/dev/spa/vendor/doctrine/dbal/lib/Doctrine/DBAL/ConnectionException.php:0