Firstly, I want to thank @peterluu so much for helping @bilalazhar. It's very nice to see how Community users try to help each other.
Secondly, regarding your issue. I would like to have a general overview about your configuration. We have a Support Tool that will gather relevant information for us to debug the issue. Could you please download and execute it in the machine where the stack is running?
Basically you need to connect via SSH and run the commands:
wget -O bnsupport_tool https://downloads.bitnami.com/files/bnsupport/0.2.0/bnsupport-linux-x64.run
chmod +x bnsupport_tool
The output of the execution of this tool will be a zip file with all the information inside. Could you please send it to
You can download the zip file from your instance, you can follow this guide to download it and the send it to me via mail.
Lastly, you mentioned:
Also after this problem is solved what is next step to go and change my site address from http to https in wp-config file or something else as instructions were not very clear what to do so kindly help me out.
Well, once you fix the problem with Let's Encrypt, you just need to follow this guide in order to force the redirection: