Configuring Mongo Router For Shard

Greetings Good People,

I pray this reaches you in the best of health and highest of spirits today. I am trying to implement a MongoDB Sharding Lab but running into one last hitch. I have spun up four (4) virtual machines (one config server, two [2] shards and a router server). I have been able to finish configuring the config server and the two (2) shards but I am running into problems when I try configuring the router server. When I try to launch the MongoDB shell, I am unable to do so and run into the below attached error. The tutorial I followed when setting up this lab can be found here, moreover, I am using Ubuntu 22.04.4 as the server operating system. Is there a misconfiguration somewhere? I am passionate about MongoDB ever since a former colleague introduced me to it. Any assistance would be very highly appreciated!

Warm regards,

Michael.