LoRaWAN & Arduino Pro Mini

I have Arduino Mini (called Pro Mini in AliExpress): Mega328 For Arduino TTGO T-Deer Pro Mini Lora V02: Mega328 For Arduino TTGO T Deer Pro Mini Lora V02 LoRa 433MHz/868MHz/915MHz|Circuits| - AliExpress

I've tested LoRa sender to receiver connection and it works. next I'm testing with LoRaWAN and I'm having problems.

I am using MCCI LMIC LoRaWAN library and the "TTN Otaa" example. I've set a "The Things Network" device. I've followed a youtube example setup: Building a LoRaWAN Node for The Things Network (TTN) - YouTube

Now when I'm running the example I get:
Starting
Packet queued
1906: EV_JOINING
29205: EV_TXSTART

When checking if something was received at "The Things Network" there is nothing.

I suspect that my pin mapping is wrong:
// Pin mapping
const lmic_pinmap lmic_pins = {
.nss = 10,
.rxtx = LMIC_UNUSED_PIN,
.rst = 5,
.dio = {2, 3, LMIC_UNUSED_PIN},
};

I've tested a number settings and above is the only one that does not cause error on Arduino serial monitor.

What could be the problem?

Your not close enough to a working Gateway.