have a read of how-to-get-the-best-out-of-this-forum
what ESP32 module are you using? give a link?
how have you connected the NRF24l01 to the ESP32?
what is the transmitter? another ESP32 with NRF24l01?
have you tested the link with File>Example>RF24>gettingStarted
Edit: is your ESP32 this one