Troubleshoot a .net application in Linux - mongodb issue

Job ID: 36082292

Budget: $10 – $30 USD

The .net application has been compiled and is running. But the register and login function are not working because of some mongodb issue.
So need to fix the connectivity of the mongodb and the .net application.
Server access will be provided and you will have to work via SSH.
It would be helpful for me If you could document the steps so that i can replicate the same on another machine.
See the error attached.
Thank you.
Related categories: Linux MongoDB .NET Core