Retroflag Controller in Rockpi4a Problem

Hi guys, I have a RockPi4a and a installed the Recalbox rom, perfect for now.
But when I connect the retroflag controller I bought, the OS is restarting and getting stuck in the POST screen, if I let the controller connected and restart the rockpi, the system get stuck on POST screen.

So, I can’t use the controller on my board.
Any tips?

Thank you all.