Problem in my account

I am getting issue if i am clicking on any problem it is showing “TEAMS ARE NOT ALLOWED TO TAKE PART IN NON-TEAM CONTEST”

HOW TO RESOLVE THIS ISSUE ? PLEASE SOMEONE TELL

You are seeing this because nishantjain_pj is a team account, and can only be used for submitting in team based contests. You should login using your normal account (nishan_06) to submit to these contests.