When trying to Join or Create a team name, the name that you are entering must be -
1. A team name that is NOT already being used. If the team name that you are entering is already being used by a past team, you will receive an error that the Team Name is already Taken.
2. A team that was created within the event's time parameters. If a team name was created before the time allowed, you will not be able to join that team name and will receive the Team Not Found error.
To Solve either error - Please create a new team name that is unique to your team only, for the current year of registration.