Fatal error: Uncaught Error: Class "Doctrine\DBAL\Exception\ConstraintViolationException" not found in /home/.sites/740/site1364/web/cloud/-/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Exception/ForeignKeyConstraintViolationException.php:30
Stack trace:
#0 {main}
  thrown in /home/.sites/740/site1364/web/cloud/-/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Exception/ForeignKeyConstraintViolationException.php on line 30