Connection: the return from the api was incorrect

Hello team, im stuck in this point, i created the cluster and added the info in the application.properties on intellIj but when i click on /status in browser i see this errors, i think something is wrong in connection from my cluster to the IDE. or i dont know.
Screenshot_4intellij
I upload two scrennshotts for help.

Something wrong with your uri… Why are you trying to connect to admin not test ?
Any reason why are you use such long and strange password ? You sure that password is correct ?
To check your connection be sure you able to connect via mongo shell:
Chapter 0: Introduction and Setup -> Lecture README -> Creating an M0 free tier cluster mflix -> step 8
( of course be sure that previous steps are done ).