Fix issues in MQTT connection to blockchain using Node-Red

For our project, we have created a smartmeter to connect via nodemcu wifi module to adafruit and use MQTT to publish on node-red for blockchain integration. The issue is even though MQTT connection works just fine, I am having trouble connecting to my blockchain and adding blocks. there are plenty errors when it comes to pushing to blockchain. Node-red and blockchain knowledges are required to resolve this issue.