Hello !I'm sending a LoRaWAN message tothe ping pong code wich plays the role of a gateway but the message is received encrypted , I need to decrpt it on the reception side.Any help please thank you!

I'm working with the ping pong with lora in stm32 , the code doesn't recieve anything , it only executes the RX_timeout and TX_timeout while the device in the other side is sending DATA correctly with lora, How can I fix this problem ?this is in the ...