I do not have either of those boards, however I will see if I can help you get the proper board to board connections.
The Planet CNC connector is supposed to follow the Pminmo 10-pin IDC connector standard described at: DIY Interface Technical Information
My interpretation of the signal labels on the YooCNC driver is that CP+ and CP- are step (clock) pulse inputs to an optoisolator; EN+ and EN- are enable inputs to another optoisolator; and there should probably be two additional inputs, for the Direction signal going to another optoisolator, possibly labeled CW+ and CW- (or maybe labeled DIR+ and DIR-). Can you verify that you have those additional input pins on your driver?
In your diagram it appears that you have the DIR output from the Planet CNC board going to an enable input of the driver instead of going to a direction input. If that is the case, then it will not work properly as wired.
Let me know whether you have located those additional direction signal pins, and if so, I can continue with my recommendation.