Sorry bro i have been afk and didnt find you in after i came back, about the Knight name issue, the name might be free but if the tag name is already taken it wont allow you to create a team anyways since 2 same tags cant exist at same time [i think?] i believe that must be it, you should use letters such as [Â] and make it a little more unique hue that should do it, almost sure of it
Edit: the [Â] character was meant for the tag not the team name :D
Edit2:Yes i believe that the problem is on the team tag ;x