The EntityManager is closed

Question

[Doctrine\\ORM\\ORMException]   
The EntityManager is closed.  

After I get a DBAL exception when inserting data, EntityManager closes and I\'m not

Answer 1

Symfony 2.0:

$em = $this->getDoctrine()->resetEntityManager();

Symfony 2.1+:

$em = $this->getDoctrine()->resetManager();