SQLSTATE[22P02]: Invalid text representation: 7
    ERROR: invalid input syntax for type boolean: ""
    500 Internal Server Error - PDOException

public function getFindAllNonOthersQueryBuilder()
{
    return $this
        ->createQueryBuilder('t')
        ->where('t.isOther = :isOther')
        ->setParameter('isOther', false);
}

/**
 * @var boolean $isOther
 *
 * @ORMColumn(name="isOther", type="boolean")
 */
protected $isOther = false;

...
->setParameter('isOther', 0);