Azure Bot messages can't reach my bot made in Azure VM

Hi there,

You guys are my only hope.

I've made a Chatbot and wanted to make it work on App Service, but no luck. My only solution was that I needed to create a VM and configure it properly and hopefully it will work. I cloned my project through git and everything works fine, it shows that it is running on localhost:3978. VM's local IP is 13.95.6.12, so I configured the bot's messaging endpoint to https://13.95.6.12:3978/api/messages, allowed TCP on port 3978 and still not getting any message on my VM. I also configured AppID and password in config.py. Do you have any idea why? It is the only step that is remaining and after that I should write a 20 pages documentation for University about it due to end of this month, so please help me somehow, I would really appreciate it. You can reach my github repo here: https://github.com/bertamate2001stud/amk-kisokos-bot