请网管帮忙：新注册登录显示“无效笔名”

PD04 2022-04-11 14:10:27 ( reads)

朋友不久前注册收到邮件：Congratulations! Your username: Colleen5850 at wenxuecity.com has been successfully registered!

但是登录总是显示“无效笔名”，请帮忙看看，谢谢！