One Easy resolution for this is
Check git remote -v
It consists of all the remotes repo links with their Aliases
If the repo link with the alias name is already there,
You can go ahead with git pull operation now as given in the taskboard
Closing this topic as your issue is resolved by the mentor. If it is still not resolved, Kindly un-mark the accepted solution or create a new topic and post this question as a reference link in the description of the new topic.