LoRa-KPN-ThingSpeak

I managed to get the right code to send my dht_11 data to KPN network from LoRa (Dragino) node. However, my next step consists on transmit this data to ThingSpeak platform throughout KPN network.

https://zakelijkforum.kpn.com/lora-forum-16/what-is-lora-and-lorawan-8314

So, basically the target consists in sending this data from LoRa node to KPN network, and then, forward it to ThingSpeak.

So that, I am actually adding into the sketch the chance to send this data to ThingSpeak, nevertheless, no data is showed on ThingSpeak dashboard.

The link below is pointed to my new code. I added the functions and variables I thought were the proper ones to send data to ThingSpeak, however, I didn't manage to send it. May I get some support or correction to achieve it, please?

Sketch link: https://github.com/Tonibco/Dragino-KPN-Project/blob/master/Dragino_KPN.ino

Many thanks