I typed the ssh student@127.0.0.1 and it threw some error. I responded with y and then again typed yes. I don’t know if this would be a trouble.
the first error is part of the course. If you just keep following the instructions, you will find the reason why the error appeared, and it is explained in the course.
In the next few lines of the course, you can find the right command, in which the ssh port is specified.
Cheers.