Database Error: SQLSTATE[23000]

Need Help
1

Hey people. Im using cakephp 3 and got the following problem.
Error: SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (prueba1.operations_roles, CONSTRAINT operations_roles_ibfk_2 FOREIGN KEY (role_id) REFERENCES operations (id) ON DELETE CASCADE)

So basically what im doing is save a relationship belongstoMany between operations and roles for example.
This error happens when i create for example a role with “n” operations and then i delete.After delete the role i create another, that’s when the error is displayed . After deleting a relationship in operations_roles. Really i dont know why this happens.

Operations model

public function initialize(array $config)
{
parent::initialize($config);

    $this->table('operations');
    $this->displayField('id');
    $this->primaryKey('id');

    $this->belongsToMany('Roles', [
        'foreignKey' => 'operation_id',
        'targetForeignKey' => 'role_id',
        'joinTable' => 'operations_roles'
    ]);
}

Roles Model

public function initialize(array $config)
{
parent::initialize($config);

    $this->table('roles');
    $this->displayField('id');
    $this->primaryKey('id');

    $this->belongsToMany('Operations', [
        'foreignKey' => 'role_id',
        'targetForeignKey' => 'operation_id',
        'joinTable' => 'operations_roles'
    ]);
}

my file migrations

$table = $this->table(‘roles’);
$table
->addColumn(‘rolname’,‘string’)
->addColumn(‘roldescripcion’,‘string’)
->create();

            $table = $this->table('operations');
            $table
                     ->addColumn('opename','string')
                     ->addColumn('opedescription','string') 
                     ->create();

$table = $this->table('operations_roles');
$table ->addColumn('operation_id','integer')->addForeignKey('operation_id','operations','id',array('delete'=>'CASCADE,'update' =>'CASCADE'))
            ->addColumn('role_id','integer')->addForeignKey('role_id','operations','id',array('delete'=>'CASCADE','update' =>'CASCADE'))
            ->create();

if anyone can help me , I would greatly appreciate it