I am doing the first chapter and actually I do not have the option to complete the last task
You mean you cant complete the " Lab: Connect to your Atlas Cluster" task ? I’ve done it like 10 minutes ago and everything works fine. Did you read all the text ??
" **This is a graded assignment.** The only way to complete it is by establishing a successful connection with your Atlas cluster within the IDE that is provided to you on this page. Hit **"Run Test"** to get this assignment evaluated."