W3_A1_Ex-6_backward_propagation [AssertionError: Wrong values for dW1]

Hi I have this kind of error, but the output and the expected as similar as i used

dZ1 =np.dot(W2.T,dZ2)*(1-np.power(np.tanh(cache[“Z1”]),2)) for which shoud come to the same thing if i am right ? i dont understand if you have any idea