Arduino Mega + nrf24L01 doesn't communicate, need your help, thank you

MEKACI:
Robin2, I took off the arduino usb host shield and it has started to work >:( ... But I need that usb host shield for my logitech control too; so how can I use both of them at the same time now ? :o

I don't know the answer to that. I have never had a host shield and I don't know anything about it.

Maybe it also uses SPI for communication?

...R

PS. Don't post pictures of text - as you can see it is unreadable. Just copy and paste text and put it in code tags.