How to use the Bendixons' Criteria to prove that there is no closed orbit for this system?

Question

So the problem that I'm trying to solve is that this system has no closed orbit using the Bendixons' criteria.

$X' = Y + (X*(Y^2))$

$Y' = - Y + (Y*(X^2))$ .

My problem is at the origin $divF$ (system is F) becomes zero

and further the $\mathbb{R^2} $\ $(0,0)$ is not simply connected. So can we use Bendixons' criteria ?