Cannot use Toons

[Taros]

Morning, I tried to create 3 different toons, and it seems upon creation I cannot login with them - get an error and booted. I was told that the names maybe too long - as they are and each have their future faction at the end of their names: ie (NC) or (TC). Could I have them deleted, as I created another with a short name and not faction added.

My login is: Taros Treefriend.

Thanks.